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FULC

Negligible · 13/100

Fulcrum Therapeutics, Inc.

Healthcare · Biotechnology

$3.77-1.95% todayupdating…
FinvizShort InterestYahoo Finance
On Watchconfluence across 2signals
Squeeze fuel
  • fails-to-deliver rising
  • coiled 4d
Loading chart…

Key Statistics

Short Interest
8.39%
% of float
Days to Cover
1.6
days
Daily Short Vol
18.6%
23% 5d avg · FINRA
Fails to Deliver
19K
rising balance ↑ · SEC
Volatility
Coiled
squeeze 4d · ↑ bias
Float
41.99M
shares
Cost to Borrow
0.52%
CTB fee · IBKR
Shares Available
2.80M
to borrow · IBKR
Rel. Volume
0.03×
vs 20-day avg
RSI (14)
38.9
Neutral
Call/Put Ratio
0.16
OI ratio
Shares Short
5.52M
shares
Prior Month Short
—
shares
WSB Mentions
None this week
r/WallStreetBets · 7 days
Market Cap
250.87M
USD
Volume
116.4K
today
Avg Volume
2.29M
30-day avg
50-day MA
$5.41
Price below ↓
200-day MA
—
Price below ↓

ⓘ Short interest from FINRA via Yahoo Finance (biweekly, ~2–3 week lag). Cost-to-borrow & shares-available from the Interactive Brokers feed via iBorrowDesk (as of 2026-07-03) — the free proxy for utilization. Daily short-sale volume from the FINRA consolidated daily file (2026-07-02) — the fresh short pulse vs the ~2-week-lagged biweekly SI. SEC FTD files are aggregate balances and can lag the trading setup. Price, volume, and technicals from market data. Last updated: Jul 6, 02:17 PM

≠ Float disputed across sources — Finviz reads 56.44M vs Yahoo 41.99M (34% apart). The squeeze score uses the Yahoo figure; treat the float-size factor for this name with caution.

13/ 100
Squeeze Confidence
13/ 100
Negligible
Short Float %8.39%
5 / 25

% of free float currently sold short

Days to Cover1.6 days
0 / 20

Shares short ÷ avg daily volume

Float Size41.99M shares
5 / 15

Freely tradeable shares — smaller = more volatile

Borrow Pressure0.52% CTB · 2.8M avail
0 / 22

Cost-to-borrow + availability — the utilization proxy (IBKR feed)

Relative Volume0.03×
0 / 8

Current volume ÷ 20-day average volume

MomentumRSI 38.9
1 / 6

RSI(14) + price vs. 50/200-day moving averages

Options Flow0.16 C/P
0 / 4

Call / Put open interest ratio (gamma fuel)

Daily Short Pressure18.6% of daily vol
0 / 6

Short volume ÷ total volume (FINRA daily) — the fresh short pulse vs the biweekly SI

Rising FTD balance — SEC aggregate fails-to-deliver balances are rising versus the prior file. This is settlement-pressure context, not proof of naked shorting. Score boosted +2.
50-day MA: Below ↓
200-day MA: Below ↓

What to Watch

  • ○Short interest at 8.39% of float — moderate level
  • ○1.6 days to cover — shorts can exit relatively quickly
  • ○41.99M share float — large float dampens squeeze dynamics
  • ○0.52% to borrow, 2.80M shares available — easy to borrow: little borrow-side pressure
  • ○Volume 0.0× normal — quiet — awaiting catalyst
  • ○Price below 50-day MA — bearish trend intact, shorts less pressured

Squeeze Conditions Checklist

✗
High Short Interest (>20%)
✗
Long Days to Cover (>7)
✗
Low Float (<20M shares)
✗
Hard to Borrow (high CTB / scarce supply)
✗
Volume Spike (RVOL >2.5×)
✗
Price above 50-day MA
✗
RSI Building Momentum (>60)
✗
Call-Heavy Options Flow
✗
Short Interest Increasing
✗
Fresh Catalyst (recent news)

Catalyst · fuel needs ignition

A Look At Fulcrum Therapeutics (FULC) Valuation After Halting Pociredir And Launching A Broad Review

simplywall.st· 32d agostale

SEC Filings · last 45 days

1 insider-sell filing

Gamma / Max Pain · exp 2026-07-17

Max Pain
$3
+25.5% vs price
Call / Put OI
0.16
739 / 4.5K
Call Wall
$4
heaviest call OI above
Put Support
$3
heaviest put OI below