When Hedge Funds Lose on Both Longs and Shorts
An independent exercise, not a statement by the video creator or verification of every claim in the video.
How a portfolio can lose money with zero net exposure
Take a hypothetical portfolio with starting equity of 100 and initial long and short notionals of 60 each. If the long stock falls 10%, it loses 6, and if the shorted stock rises 5%, it loses 3, for a −9% return on equity. The starting net exposure, longs minus shorts, is 0, while gross exposure is 120% of equity.
Check for yourself
- If the underlying share prices on both sides fell 10%, what would each position earn or lose, and what would the combined result be?
- If the short has a mark-to-market loss of 3, which contract terms and existing collateral balance would you check to determine how much cash is due that day?
Limits of application
This hypothetical example applies a single price move and excludes borrow fees, dividends, trading costs and collateral rules. Archegos illustrates how margin calls can create a cash shortfall. It does not establish the actual weights or margin terms of the funds discussed in the video.
- What to look for
- See how a fund can lose on both sides when its AI holdings fall and the shares it has sold short rise.
- Why it matters
- Separate your broad market outlook from profit and loss on each side, then record the evidence and conditions that would change your mind so you can review the decision later.
Timeline
6 segmentsIn the reporting cited by the broadcast, AI stocks held by some funds fell while shares those funds had sold short rose. A rising share price creates losses for a short position, so both sides detracted from returns.