Plains GP Holdings enters this week with a striking split: the stock is up 8% on the week and trading at its best level in two months, yet short sellers have simultaneously added the most aggressive position they've held all year.
The short interest story is the standout. Short interest jumped nearly 27% in a single week — from roughly 7.6% to 9.6% of free float — between May 8 and May 11. That's not a gradual drift; that's a deliberate re-build. The position has held near that elevated level all week, with 18.6 million shares short as of May 19. The last comparable reading, around 8.6% in late April, came before a modest unwind. The current level is the highest in the 30-day window. The ORTEX short score has responded in kind, climbing from 60 at the start of the month to 67.9 — reflecting the uptick in both size and conviction of the short book.
The borrow market tells a more relaxed story, and it matters for reading the squeeze potential. Cost to borrow has fallen sharply, dropping more than 40% on the week to just 0.78% — well below the 5.2% peak seen on May 1. Availability is wide at 278%, meaning roughly three shares are available for every two already borrowed. That's a comfortable lending environment. Bears can add without paying up to do so, and there's no mechanical squeeze pressure. The ORTEX short-score rank in the 4th percentile of the sector further confirms that this is a high-conviction short book operating in a loose borrow market, not a crowded name on the edge of a technical squeeze.
Options sentiment leans bullish — and it sharpens the contrast with the short rebuild. The put/call ratio is running at just 0.11, well below its 20-day average of 0.15 and near its 52-week low of 0.09. Call volume is dominating, which fits a stock that's up 12% over the past month and attracting momentum buyers. The divergence between options traders loading calls and short sellers adding to positions is the defining tension in PAGP right now.
Analyst activity has tilted constructively this week. Morgan Stanley raised its target from $24 to $26 on May 20, maintaining Equal-Weight — the most recent action and worth noting given the timing relative to the stock's run. Citigroup (Neutral) and Wells Fargo (Equal-Weight) both lifted targets earlier in the month, to $23 from $20 and $23 from $22 respectively. The direction of travel across the Street is upward targets, but the ratings remain clustered around Neutral/Equal-Weight. The mean price target of $23.57 is now below the current price of $25.33, and Barclays retains an Underweight with a $21 target — making the stock technically above consensus even after the recent upgrades. The dividend score ranks in the 80th percentile, reflecting the income credentials that attract the specialist energy infrastructure holders on the register, including Tortoise Capital (5.96%), MFS (4.58%), and Energy Income Partners (4.53%).
The next catalyst on the calendar is August 7, when Q2 results are due. The most recent print, on May 8, produced a barely-negative one-day reaction of -0.5% followed by a 3.9% five-day recovery — suggesting the market tends to look through the immediate print and trade on the longer-term backdrop. What to watch heading into summer: whether the short book at 9.6% of free float begins to cover as the stock holds above analyst consensus targets, or whether bears add further on the valuation argument as the P/E has re-rated to 12.3x on a 30-day expansion of roughly 1.7 turns.
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