IRON close: $53.4 on 2023-08-21 to $80.3 on 2026-08-19.
Split-adj closes · 240 of 906 · price returnⓘ
At a glance
Short interest19.3% of sh out
Days to cover20.9d
13F net flow (QoQ)+7.01%
Top-10 13F concentration49.9%
Next report (est.)2026-10-29
SI 2026-07-31 · 13F 2026-Q1ⓘ
Key fundamentalsFY 2025
Earnings (TTM)-$245.9M
ROE−35.9%
ROIC−39.0%
Debt / equity0.04×
FY ratios · TTM sales/earnings (USD)ⓘ
Trailing returns
YTD+1.1%
1Y+38.1%
3Y+50.4%
Since incept. (ann.)+46.8%
Total return · from 2022-12-30ⓘ
Risk
Ann. volatility (1Y)53.6%
Ann. volatility (3Y)60.0%
Sharpe (1Y)0.86
Sharpe (3Y)0.57
Max drawdown (1Y)−40.5%
Max drawdown (3Y)−64.8%
Beta (3Y vs SPY)2.37
Daily returns, ann.ⓘ
Top institutional holders13F 2026-Q1
Manager
Shares
Value
% sh out
QoQ
FMR LLC
5.6M
$357M
14.64%
+2.5%
RA CAPITAL MANAGEMENT, L.P.
2.5M
$157M
6.42%
+24.0%
BlackRock, Inc.
2.3M
$145M
5.96%
−0.1%
WELLINGTON MANAGEMENT GROUP LLP
1.7M
$111M
4.55%
+14.3%
STATE STREET CORP
1.7M
$109M
4.45%
+43.0%
PRICE T ROWE ASSOCIATES INC /MD/
1.5M
$99M
4.06%
−8.8%
Atlas Venture Life Science Advisors, LLC
1.5M
$97M
3.97%
+0.0%
VANGUARD CAPITAL MANAGEMENT LLC
1.4M
$88M
3.60%
new
Δ vs 2025-Q4 · Institutional 13F holdings sum to 109.8% of shares outstanding. Readings above 100% reflect securities-lending double counting: shares on loan to short sellers are reported long by both the lending institution and the one that bought them. FINRA short interest of 5,668,145 shares (settlement 2026-05-15) accounts for the excess.ⓘ
Latest reported quarterslast report 2026-07-30
Period end
Reported
EPS
EPS YoY
Revenue
Rev YoY
2026-06-30
2026-07-30
−$1.54
—
—
—
2026-03-31
2026-05-05
−$1.65
—
—
—
2025-09-30
2025-11-06
−$1.77
—
—
—
2025-06-30
2025-08-07
−$1.58
—
—
—
As-reported XBRL · next 2026-10-29 est.ⓘ
Basis & disclosures
EOD closes · nothing imputed or averaged · absent “—”
As-of differs by block · 13F = US long, 45+d lag, LOWER bound
Not investment advice · no recommendation, price target or solicitation
EDGAR + foreign registers · marketstack (licensed EOD) · spzco.com/methodology
