Partly to mostly cloudy and muggy with a few showers and thunderstorms overnight. .

Partly to mostly cloudy and muggy with a few showers and thunderstorms overnight.

Warren Buffett is a master investor, with the wealth and track record to prove it. He's been investing successfully for decades on his own terms, often with heavy concentrations in sectors and individual stocks.

Buffett has openly labelled diversification as a technique that's only needed by less-skilled investors. The portfolio at Berkshire Hathaway, the company Buffett runs, reflects that belief. Specifically, two sectors account for 71% of Berkshire's holdings: technology and finance.

Diversification is a risk management strategy. The goal is to avoid having all your assets move in lockstep together -- which would create extreme portfolio volatility. You might not mind upside volatility, but no one likes downside volatility.

With the possibility of a U.S. recession looming, is Buffett taking a gamble on these two sectors? Let's take a closer look.

Berkshire owns 14 financial stocks. As you can see in the table below, the top four of these financial companies comprise 23% of the overall portfolio.

Rank in Portfolio (in Terms of Value)

Bank of America (NYSE: BAC)

Data source: 1Q22 13F filing.

The broader financial sector usually enjoys relatively stable demand in all types of economic climates. Some areas, like bookkeeping and tax prep services, can even get a boost in a recession.

Buffett's exposure, however, is in banks -- which have their own behaviors in down economies. Banks can do well in mild downturns, when credit card interest rates tick up and borrowing levels increase. But banks will struggle as defaults rise.

Interestingly, Buffett opened smaller positions in two banks in the first quarter -- Citigroup (NYSE: C) and Ally Financial (NYSE: ALLY) , which has a consumer banking division. Buffett is not one to move in and out of a stock or sector based on short-term market conditions. So unfortunately, you can't interpret the increased banking concentration as a prediction for a softer (bank-friendly) downturn.

It's more appropriate to surmise that Buffett feels good about the longer-term prospects for these stocks. Even if a sharp recession materializes, Buffett sees these banks weathering the storm.

The table below shows Berkshire's technology stocks -- all five of them.

Rank in Portfolio (in Terms of Value)

Data source: 1Q22 13F filing.

The tech sector, like financial services, likely won't demonstrate a uniform response to recession. Mature tech companies like Apple, Microsoft, and Alphabet obviously have advantages over their smaller counterparts. Those advantages include diverse revenue streams, wide-scale brand recognition, and access to capital. These factors, along with an ongoing business push toward digitization, kept these tech stocks resilient in the brief recession of 2020.

A recession this year, though, might play out differently. Investors are already nervous about tech valuations, which has pushed share prices down this year. That negative investor sentiment could create more extreme reactions to softer-than-expected guidance or results.

Smaller tech stocks have more risk in a recession. Their less-stable business performance exacerbates the challenges of a nervous investor climate and rising interest rates.

Buffett owns a few small tech stocks, but this exposure pales in comparison to his Apple holdings. And with Apple, Buffett shows no concern. When Apple's share price dipped in the first quarter, he increased Berkshire's position by nearly 3.8 million shares.

Buffett also bought more Activision shares in the first quarter, on the news that Microsoft will purchase the video game maker.

Buffett held positions in HP, Snowflake, and Nu Holdings stable in the first quarter. Snowflake is a data warehousing company with a positive outlook for this fiscal year. Nu Holdings is a digital banking platform with about 60 million customers in South America.

The finance and technology sectors both have complicated histories with recession. Still, Buffett's picks in these areas are strategic. He's proven his ability to identify companies with staying power -- which, in his view, offers better protection than diversification.

Even so, most investors benefit from diversifying more than Buffett. It's too challenging to predict accurately how certain sectors or stocks will respond to constantly changing circumstances. Diversification protects you from being wrong -- which can keep you in the game to win another day.

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Citigroup is an advertising partner of The Ascent, a Motley Fool company. Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool's board of directors. Ally is an advertising partner of The Ascent, a Motley Fool company. Bank of America is an advertising partner of The Ascent, a Motley Fool company. American Express is an advertising partner of The Ascent, a Motley Fool company. Catherine Brock has positions in Microsoft. The Motley Fool has positions in and recommends Activision Blizzard, Alphabet (A shares), Alphabet (C shares), Apple, Berkshire Hathaway (B shares), HP, Microsoft, Moody's, and Snowflake Inc. The Motley Fool recommends the following options: long January 2023 $200 calls on Berkshire Hathaway (B shares), long March 2023 $120 calls on Apple, short January 2023 $200 puts on Berkshire Hathaway (B shares), short January 2023 $265 calls on Berkshire Hathaway (B shares), and short March 2023 $130 calls on Apple. The Motley Fool has a disclosure policy.

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· Air Products and Chemicals Inc.'s chosen warehouse developer, Prologis Inc., will have to wait until July 13 for a final decision by Upper Macungie Township's zoning hearing board on 2.61 million square feet of warehouses. 

· Chubby's of Southside Easton has added Krispy Krunchy Chicken to its offerings and name.

· Curaleaf Holdings Inc., which operates in the U.S. and Europe, will open a medical-marijuana dispensary at 1801 Airport Road, Hanover Township.

· Habitat for Humanity, which has "ReStores" that sell new and lightly used furniture, has leased 30,000 square feet at the South Mall.

· Nat Hyman's bid to convert an old warehouse at 938 Washington St. in Allentown into 48 apartments did not win zoning hearing board approval this week after neighbors said more housing would make an on-street parking shortage worse.

· Members 1st Federal Credit Union opened a new branch this week at 5605 Hamilton Blvd, Trexlertown. It's one of five planned for the Lehigh Valley. 

· A Turkish restaurant has relocated from one downtown to another, taking its fresh ingredients and cozy atmosphere from Nazareth to 200 Main St., Tatamy.

· The Tennessee Titans have chosen Allentown-based Shift4 Payments to handle payments at Nissan Stadium.

· Wells Fargo Bank held ribbon-cutting at its downtown Allentown branch at 740 Hamilton St.

· The Wiz Kidz outlet at the Madison Farms residential/retail development in Bethlehem Township will hold a grand reopening and ribbon-cutting at noon on July 15.

· Bad Biscuit Company, which offered breakfast with scratch-made biscuits, freshly baked pastry and local, small-batch artisan coffee, said it will cease operations at 16 Columbia Ave. in Reading after its July 1 hours.

· FastBridge Fiber has announced it will build an all-fiber cable network that will offer ultra-fast internet in the Reading area.

· Hamid Chaudhry has said he no longer plans to move forward with pursuing a food truck park he previously proposed on the site of the former Sheetz convenience store and gas station in Exeter Township at 6600 Perkiomen Ave. (Route 422 East). 

· The Maxatawny Township Planning Commission has OK'd a proposal for a Mavis Discount Tire store in the Kutztown Road shopping center that features a Giant supermarket.

· Valentino's Italian restaurant has gotten Maxatawny Township's approval to remain open when the state transportation department takes one-third of its parking lot to build a traffic roundabout at the intersection of Route 222 and Long Lane.

· Pocono Mountain Harley-Davidson, under new ownership, will hold a "Grand Re-Opening Bash" July 9 and July 10 from 10 a.m. to 5 p.m. 

· Sauce West End plans to open in a former Rita's Italian Ice, just off Route 209 across from the Tractor Supply store in Brodheadsville.

· The Surgery Center of Pottsville, which offered medical procedure services for 16 years in Cressona Mall. will close June 28.

· Wells Fargo has closed its branch office in Langhorne, near the intersection with Maple Avenue.

· The latest PrimoHoagies location in New Jersey held a grand opening at 1930 State Route 57, Hackettstown.

· A new Tractor Supply Co. store in Warren County will have its grand opening in the former Toys 'R' Us store in Pohatcong Plaza on July 9.

· Hunter Pocono Peterbilt plans to move Pocono Township operations to Stroudsburg.

· Coal Winery and Kitchen at 81 Broad St., Bethlehem, has closed as its owner searches for a new location for the business, according to its Facebook page. 

· Lowhill Township supervisors approved a 312,120-square-foot commercial warehouse and distribution center on a 43.4-acre tract on the west side of Route 100, south of the Kernsville Road intersection.

· The Mint Gastropub at 1223 W. Broad St., Bethlehem, announced that it has temporarily closed to undergo a merger with a "well-known restaurant group" from Bethlehem.

· The Slatington Farmers Market opened its 28,000-square-foot showroom, which includes space for 53 vendors, as well as a 4,000-square-foot event space.

· St. Luke's University Health Network opened a new pediatric inpatient unit next to the eight-bed pediatric intensive care unit at St. Luke's University Hospital – Bethlehem.

· 25th Asian House opened at the location of the former Tin Tin Chinese restaurant in the 25th Street Shopping Center in Palmer Township.

· The Chick-Fil-A in Broadcasting Square shopping center in Spring Township was razed to make way for a new, expanded facility for the popular chicken sandwich restaurant.

· Plans for drive-thru locations of a Chipotle and a Starbucks at the intersection of Ivy League Drive and Kutztown Road were rejected by Maxatawny Township planners.

· Cumru Township plannes reviewed preliminary plans for NorthPoint-Morgantown Commerce Center, a 738,720-square-foot warehouse to be built on 75.2 acres at Morgantown Road (State Route 10) and Freemansville Road.

· Kutztown University has plans to expand its historic Poplar House to 13,161 square feet with an addition around its side and back, but keep the 129-year-old structure intact.

· A wine store and beverage outlet could be coming to a new two-unit building along the commercial strip of Blakeslee Boulevard Drive East in Lehighton, Carbon County.

· ChristianaCare, a Delaware health care organization, has announced it will buy the former Jennersville Hospital in West Grove, Chester County.

· Garden of Health Inc. celebrated the opening of the food bank's new warehouse at 201 Church Road, North Wales, in Montgomery County.

· Silverline Trailers Inc. opened its first location in Pennsylvania and in the Northeast at 223 Porter Road, Pottstown, where it sells utility, cargo, dump, equipment and car hauler trailers. 

· A new smoothie and bowl restaurant, Sips & Berries, opened at 285 Maple Ave., Harleysville, in Montgomery County.

· Terrain on the Parkway offers 160 new 1-, 2- and 3-bedroom apartments at 1625 Lehigh Parkway East in Allentown. 

· Lehigh Valley native Don Wenner is moving his real estate investment and finance firm DLP Capital from Bethlehem to Allentown at 835 W. Hamilton St.

· While Wells Fargo has been the leader in closing banks lately, it will hold a ribbon-cutting for its new downtown Allentown office at 740 Hamilton St. on June 30.

· If you're in the market for sterling silver jewelry, minerals and semi-precious gemstones, C& I Minerals is now operating at the South Mall at 3300 Lehigh St. in Allentown.

· The Allentown-based utility company PPL Corp. bought a major Rhode Island utility.

· Ownership at Martellucci's Pizzeria in Bethlehem has changed, but Paul and Donna Hlavinka and their family are running the pizza place at 1419 Easton Ave., just as it has been operated for 49 years. 

· Dr. Jacob Kasprenski's new Kasprenski Family Eye Care opened at 1088 Howertown Road, Catasauqua.

· Josie's New York Deli in downtown Easton closed early in the COVID-19 pandemic, but a June 13 Historic District Commission meeting approved a request for a new sign at its building at 14 Centre Square. 

· Zekraft cafe has opened its second location in the Easton Silk Mill in Easton. The first Zekraft restaurant was opened in Bethlehem. The restaurants' menus change frequently, with a focus on local ingredients. 

· Manta Massage at 319 Main St., Emmaus, will hold its grand opening on July 10 starting at 11 a.m. 

· The former Iron Lakes Country Club, constructed in the late 1950s and early 1960s, will operate at 3625 Shankweiler Road in North Whitehall Township under its new name, The Club at Twin Lakes. 

· Prologis, a titan in the logistics industry, will own and operate three warehouses proposed in Upper Macungie Township at the former Air Products headquarters campus at 7201 Hamilton Blvd. 

· Lehigh Valley Health Network ceremonially opened its first Carbon County hospital — a $78 million, 100,578-square-foot facility at 2128 Blakeslee Boulevard Drive East in Mahoning Township.

· Pocono Township commissioners voted to accept Swiftwater Solar's preliminary final plan for the $111 million, 80-megawatt field on a private 644-acre site on top of Bear Mountain that would include about 200,000 solar panels.

· Firetree Ltd. wants to expand its in-patient rehab operation at the former Sands Ford auto dealership at 440 N Claude A Lord Blvd. (Route 61), Pottsville.

· A Dunkin' in Schuylkill County located at 400 Terry Rich Blvd., St. Clair, has become just the fourth location of the donut and coffee chain to go entirely digital. 

· The Conservatory music school in Bucks County will close after 34 years, and school officials say the COVID-19 pandemic is the cause. The nonprofit, located at 4059 Skyron Drive, Doylestown, will close June 30.

· A Popeyes Louisiana Kitchen and Arby's will be built on the site of the former Ahart's Market on Route 22 in Phillipsburg, New Jersey.

· Hunterdon County Chamber of Commerce offices and the Unity Bank Center for Business & Entrepreneurship will be located at 119 Main St., Flemington. 

· Honeygrow opens Quakertown location, next to Chipotle on Route 309, on June 3.

· Dunkin' reopens remodeled restaurant at 1174 MacArthur Road in Whitehall Township

· Muse Modern Med Spa at 325 Fifth St. in Whitehall Township  will hold a grand opening June 4.

· Around Again, a consignment store, opened at 154 S. Main St., Phillipsburg

· Steak and Steel Hibachi, a restaurant in the works at 44 W. Walnut St., Bethlehem, still plans on opening late this summer. 

· Take It Outdoors Recreation Hub has moved to a spot along the Schuylkill River Trail at Riverfront Park in Pottstown, Montgomery County

· Pedego Electric Bikes has a new outlet in Lambertville, N.J. at 13 N. Union St.

· Amanda Vachris has opened a new Keller Williams Real Estate office at 15 St. John St. in Schuylkill Haven.

· Easton's new West Ward Market will open Wednesday and be open on Wednesday's through the summer from 3 p.m. to 7 p.m. The market, created by the Greater Easton Development Partnership, will sell fresh produce on 12th Street, next to Paxinosa Elementary School.

· Ciao Sandwich Shoppe is adding a second location, this time on College Hill in Easton. Ciao plans to open at 325 Cattell St. in late summer. Ciao already operates in downtown Easton at 12 N. Third St

· Ma's Crepes and Cakes will hold a grand opening and ribbon-cutting June 16 at 46 W. Broadway, Jim Thorpe. The celebration starts at 5 p.m., with the ribbon cutting at 5:45 p.m. 

· Bethlehem's Back Door Bakeshop will reopen as a wholesale operation at 7 E. Church St. in the city's historic district. The business was open for nine years as a retail outlet at Broad and Center streets, before announcing in March that it would close the storefront April 3 and "go back to its origins as a wholesale business."

·The Beef Baron on Catasauqua Road in Bethlehem is closed indefinitely for renovations

· The Brothers That Just Do Gutters are opening a new location in Allentown at 1302 N. 18th St.

· St. John Chrysostom Academy, an Orthodox school serving grades 1-9 starting this fall, held a grand opening at its St. Francis Center, Bethlehem, campus.

· Easton Commons, a shopping center anchored by Giant Foods at 2920 Easton Ave., Bethlehem Township, has a new name: The Shops at Bethlehem.

· Carbon County is getting a taste of Brazil at Uai Brasil BBQ at 315 Lehigh Ave. in Palmerton.

· The Keystone Pub in Bethlehem Township, at 3259 Easton Avenue, has reopened after a lengthy and expensive renovation. 

· The Trading Post Depot opened at 401 Northampton St., Easton. The rustic furniture store makes custom tables for dining rooms, desktops, conference centers and more.

· The Easton area has a new gym: Homemade Fitness at 444 Cedarville Road in Williams Township.

· Il Gaetano Ristorante opened at its 665 Columbus Ave., Phillipsburg, location. 

· Ciao! Sandwich Shoppe to open second location on College Hill in Easton, replacing The Kettle Room

· Rene and Grisellies Benique have opened Ezekiel 47 Cafe at 10 S. Fifth Ave., off Fifth and Penn avenues, in West Reading. 

· Alter Ego Salon and Day Spa in Emmaus is holding a grand opening Sunday, May 22, from 11 a.m. to 3 p.m., with a ribbon cutting at noon. 

· Origen Latin Fusion has opened at the site of the former Tomcat Cafe in Sinking Spring, Berks County. 

· Sellersville Senior Residences will hold a ribbon-cutting ceremony May 24. The Bucks County affordable-housing community for adults 55 and older has 50 apartments, with eight allocated for people with behavioral health needs.

· The House and Barn in Emmaus has opened its Shed outdoor dining and cigar bar area. The House and Barn is at 1449 Chestnut St. in Emmaus.

· Realtor Amanda Vachris and the Schuylkill Chamber of Commerce will hold a ribbon cutting at Vachris's new Keller Williams Real Estate office at 15 St. John St., Schuylkill Haven, at 4 p.m. on May 24.

· Il Gaetano Ristorante will hold a grand opening on Friday, May 20, at 5:30 p.m. The 665 Columbus Ave., Phillipsburg.

· First Commonwealth Federal Credit Union will hold a grand opening at its new headquarters in Trexlertown, 6126 Hamilton Blvd., on May 18.

· Vinyl Press Signs & Graphics has relocated within Emmaus. The new site is 15 S. Second St., not far from the former Sixth Street location.

· Pedro's Cafe in Emmaus to close

· SV Sports (formerly Schuylkill Valley Sports) to close Quakertown location

· Flemington DIY will host a Grand Re-Opening on May 14 at 26 Stangl Road, Flemington. The celebration will kick off at 10 a.m. 

· Elpedio’s Ristorante at Seipsville opened at 2912 Old Nazareth Road in Easton. The restaurant is open Wednesday through Sunday.

· Uai Brazil opened at 315 Lehigh Ave, Palmerton, offering both a seated or buffet option. 

· Colombian Mex Restaurant opened at 107 E Union Blvd in Bethlehem, offering traditional Colombian cuisine. 

· Precision Ink opened at 161 W Berwick St. in Easton. 

· King Wing opened a location in Bethlehem at 129 E. Third St., serving wings and sandwiches.  

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