Zweig's Portfolio Rebalance
Zweig DiMenna Makes Strategic Q1 Portfolio Adjustments, Adding Allient and Root Holdings
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Key Points
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61.57% of ALNT stock is owned by institutional investors, indicating broad institutional interest beyond Zweig DiMenna's new 47,000-share position.
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Hedge funds and other institutional investors own 59.82% of ROOT, reflecting a heavy institutional footprint in Root.
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Revolution Medicines shows institutional ownership at 94.34%, underscoring a high level of institution-held shares despite Zweig's trimming.
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Teradyne accounts for about 1.6% of Zweig's portfolio and was Zweig's 22nd largest position after reducing to 38,034 shares.
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Analysts set ALNT price targets ranging from $70 to $95, with JPMorgan Chase & Co. elevating its target to $95 and assigning an overweight rating.
Zweig DiMenna Associates LLC opened a fresh 47,000-share position in Allient Inc. during the first quarter of 2026, valuing the new stake at roughly $2.78 million, according to Ticker Report. The move signals growing institutional confidence in the industrial technology firm, which already counts institutional investors as owners of 61.57% of its outstanding shares.
The hedge fund did not stop at Allient. Zweig DiMenna also added 27,000 shares of Root, Inc. worth about $1.19 million, while making sharp cuts elsewhere in its book — slashing its Revolution Medicines stake by 92% and halving its Teradyne position.
Allient Gets a Fresh Vote of Institutional Confidence
Zweig DiMenna's new Allient position gives the fund roughly a 0.28% overall stake in ALNT, according to Ticker Report. Allient makes precision motion control and power electronics used in industrial and defense markets. With 61.57% of shares already held by institutions, the company carries strong Wall Street backing.
Analysts are bullish on ALNT's outlook. JPMorgan Chase & Co. raised its price target to $95 and assigned an overweight rating. Price targets across analysts range from $70 to $95, suggesting the stock has room to run from current levels.
Root, Inc. Stake Added as Institutional Ownership Runs High
Zweig DiMenna added 27,000 Root shares, worth roughly $1.19 million, in the same quarter. Root is an insurance technology company. Hedge funds and institutional investors already own 59.82% of ROOT's shares, making it a heavily institution-held name, per Ticker Report.
The Root buy fits a pattern of Zweig adding newer, higher-growth positions while trimming more established names. Root has drawn attention from multiple funds altering stakes during the quarter, reflecting broad institutional repositioning in the stock.
Revolution Medicines and Teradyne Take the Biggest Hits
Zweig DiMenna cut its Revolution Medicines holding by about 92%, dropping to just 8,287 shares remaining. That is a dramatic trim in a stock where institutions collectively hold 94.34% of all shares. The fund appears to be locking in gains or reallocating capital rather than souring on the sector entirely, according to Ticker Report.
Teradyne also took a meaningful cut. Zweig reduced its TER position by roughly half, down to 38,034 shares. Teradyne still accounts for about 1.6% of the fund's overall portfolio and remains its 22nd largest position. The trim reflects selective pruning, not a wholesale exit.
Zweig DiMenna's Broader Q1 Push Into New Positions
The Allient and Root buys were not the fund's only new moves. Zweig DiMenna also raised its ThredUp position by 170.1% in the first quarter, adding 916,000 shares to bring its total to 1,454,500 shares of TDUP, according to Watchlist News. That is a far larger commitment than either the ALNT or ROOT positions.
The fund also lifted its stake in the VanEck Oil Services ETF by 50%, per Ticker Report. Taken together, Q1 2026 shows Zweig DiMenna building exposure in a wide range of sectors — from insurance tech to oil services — while aggressively trimming biotech and semiconductor holdings.
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