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Despite recent volatility, the S&P 500 is still very close to its all-time highs. Investors have to grapple with much slower economic growth at the same time the bull market is well over 10 years old, and they should be considering what changes to make to portfolios and assets heading into late 2019 and as 2020 approaches.

24/7 Wall St. reviews dozens of analyst research reports each day of the week to find new ideas for traders and long-term investors alike. Some of the daily analyst calls cover stocks to buy, while others cover stocks to sell or to avoid.

We have provided these calls in a quick-hit summary for easy reading, and additional comments and trading data have been added on some of the calls. The consensus analyst price targets and other valuation metrics are from the Refinitiv (Thomson Reuters) sell-side research service.

These are the top analyst upgrades, downgrades and initiations for Friday, September 20, 2019.

American Electric Power Co. Inc. (NYSE: AEP) was reiterated with a Buy rating and a $105 price target at UBS Securities. The stock closed at $93.18, in a 52-week range of $68.92 to $93.38.

Apollo Global Management Inc. (NYSE: APO) was reiterated with a Buy rating and a $45 price target at UBS Securities. Shares recently closed at $40.88, in a 52-week range of $22.63 to $41.79.

Apple Inc. (NASDAQ: AAPL) was reiterated with a Buy rating and a $270 price target at Cascend. Shares recently closed at $220.96, in a 52-week range of $142.00 to $233.47.

Aurora Cannabis Inc. (NYSE: ACB) was initiated at MKM Partners with a Sell rating and a $5 price target. Shares last closed at $5.16, in a 52-week range of $4.58 to $12.52.

Constellation Brands Inc. (NYSE: STZ) had a couple calls surface Friday morning. Morgan Stanley reiterated an Equal Weight rating with a $227 price target, and MKM Partners initiated coverage with a Buy rating and a $263 price target. Shares last closed at $207.34, in a 52-week range of $150.37 to $228.91.

Craft Brew Alliance Inc. (NASDAQ: BREW) was initiated with a Neutral rating and a $16 price target at MKM Partners. Shares closed at $8.09, with a 52-week range of $8.05 to $18.71.

Etsy Inc. (NASDAQ: ETSY) was upgraded at RBC Capital with an Outperform rating with a $68 price target. The stock closed at $59.07, in a 52-week range of $38.02 to $73.35.

Marathon Oil Corp. (NYSE: MRO) was reiterated with an Outperform rating and a $21 price target at Wells Fargo. Shares closed at $13.04, in a 52-week range of $11.39 to $24.20.

Roku Inc. (NASDAQ: ROKU) was initiated at Pivotal Research with a Sell rating and a $60 price target. Shares last closed at $133.76, in a 52-week range of $26.30 to $176.55.

Seagate Technology PLC (NASDAQ: STX) saw a few updated calls on Friday morning. Benchmark reiterated a Buy rating with a $60 price target, Morgan Stanley reiterated an Overweight rating with a $56 price target, Mizuho reiterated it as Neutral with a $50 price target and Barclays reiterated its Underweight rating with a $40 price target. Shares most recently closed at $52.94, in a 52-week range of $35.38 to $57.20.

Semiconductor Corp. (NASDAQ: ON) was initiated with a Buy rating and a $26 price target at Benchmark. Shares closed at $19.56, in a 52-week range of $14.55 to $23.54.

Solar Edge Technologies Inc. (NASDAQ: SEDG) was reiterated with a Neutral rating and an $80 price target at Credit Suisse. Shares closed at $89.42, in a 52-week range of $32.42 to $90.45.

Square Inc. (NYSE: SQ) was reiterated at KeyBanc with an Overweight rating and a $75 price target. Shares closed at $59.03, in a 52-week range of $49.82 to $101.15.

Tilray Inc. (NASDAQ: TLRY) was initiated at MKM Partners with a Neutral rating and a $34 price target. Shares closed at $29.96, in a 52-week range of $25.15 to $178.85.

Thursday’s top analyst upgrades and downgrades included Beyond Meat, U.S. Steel, Check Point Software, Applied Materials, AutoZone, Costco Wholesale and more.