TENB close: $45.1 on 2023-08-21 to $34.4 on 2026-08-21.
Split-adj closes · 240 of 2,024 · price returnⓘ
At a glance
Short interest9.3% of sh out
Days to cover2.7d
13F net flow (QoQ)+7.45%
Top-10 13F concentration48.8%
Next report (est.)2026-10-28
SI 2026-07-31 · 13F 2026-Q1ⓘ
Key fundamentalsFY 2025
Sales (TTM)$1.04B
Earnings (TTM)$6.7M
ROE−9.9%
Net margin−3.6%
Sales growth 3Y13.5%
FY ratios · TTM sales/earnings (USD)ⓘ
Trailing returns
YTD+46.1%
1Y+14.3%
3Y−23.7%
5Y−17.4%
Since incept. (ann.)+1.6%
Total return · from 2018-07-26ⓘ
Risk
Ann. volatility (1Y)53.5%
Ann. volatility (3Y)41.8%
Sharpe (1Y)0.50
Sharpe (3Y)−0.01
Max drawdown (1Y)−48.5%
Max drawdown (3Y)−69.1%
Beta (3Y vs SPY)1.49
Daily returns, ann.ⓘ
Top institutional holders13F 2026-Q1
Manager
Shares
Value
% sh out
QoQ
BlackRock, Inc.
13.5M
$228M
11.75%
+5.5%
VANGUARD PORTFOLIO MANAGEMENT LLC
9.6M
$163M
8.38%
new
AMERIPRISE FINANCIAL INC
8.5M
$144M
7.40%
+29.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.3M
$90M
4.65%
new
SHAPIRO CAPITAL MANAGEMENT LLC
4.2M
$70M
3.61%
+43.5%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
3.7M
$63M
3.25%
+175.1%
FMR LLC
3.6M
$60M
3.11%
+139.9%
Penserra Capital Management LLC
3.4M
$57M
2.95%
+22.9%
Δ vs 2025-Q4 · Institutional 13F holdings sum to 103.1% 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 15,586,136 shares (settlement 2026-05-15) accounts for the excess.ⓘ
Latest reported quarterslast report 2026-07-29
Period end
Reported
EPS
EPS YoY
Revenue
Rev YoY
2026-06-30
2026-07-29
$0.03
—
$268.5M
+8.6%
2026-03-31
2026-04-29
$0.01
—
$262.1M
+9.6%
2025-12-31
2026-02-04
−$0.01
−200.0%
$260.5M
+10.5%
2025-09-30
2025-10-29
$0.02
—
$252.4M
+11.2%
As-reported XBRL · next 2026-10-28 est.ⓘ
Segment mixFY2025 (ended Dec 2025)
Americas 61% · EMEA 27% · Asia Pacific 12%
geographic · TAGGED revenueⓘ
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
