Decline depth
-42.7%
From rolling 252-day high of $35.69, 308d ago.
Past the 40% Red List threshold.
-42.7%
from rolling 252-day high of $35.69 set 2025-07-10 · 308d ago
Current
$20.45
Decline depth
-42.7%
Decline σ
3.6σ
TFC
4/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Structural break signals
TENB qualifies for the Red List on decline depth.
Time-frame continuity
4/5 bearish
Latest bar across daily/weekly/monthly/quarterly/yearly time frames. A bar counts as bearish when it's a 2-Down or a red 3.
Past the 4/5 Amber threshold.
Decline sigma
3.6σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (2.44% per day).
The structural read
What price action says about TENB.
TENB qualifies for the Red List on decline depth — down -42.7% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: also showing 4/5 bearish time frames.
Earnings on file: 2026-04-29. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $15.73
23.6% of range
52W high $35.69
Sector context · Technology
172 other Technology tickers are on Broken Stocks.
118
Red List
36
Amber
18
Watch
-44.4%
Median decline
Worst in sector: PAR (-79.8%). Least-bad: IMMR (-20.8%). See all Technology listings →
Related — same sector
Closest decliners to TENB
Red List
DSGX
The Descartes Systems Group Inc
Red List
PAYX
Paychex, Inc.
Red List Recovering
QMCO
Quantum Corporation
Red List
OTEX
Open Text Corporation
Red List
ITRI
Itron, Inc.
Red List Recovering
PSN
Parsons Corporation
Questions about TENB
What people ask.
Why is TENB on Broken Stocks?
TENB qualifies for the Red List on decline depth. It is down -42.7% from its rolling 252-day high of $35.69, set on 2025-07-10 — 308d ago.
Is TENB a falling knife?
Not by the strict technical definition. TENB is down -42.7% from its 52-week high, but that high was set 308d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. TENB is still on the Red List for decline depth, but the freshness component of a falling knife is missing.
Is TENB a buy?
Broken Stocks does not issue buy or sell recommendations. The list is a rules-based technical warning system. It tracks structural decline depth and recency — not company quality, management, fundamentals, or news. Always do your own research and consult a licensed advisor.
Where is TENB trading inside its 52-week range?
At $20.45, TENB sits 23.6% of the way from its 52-week low ($15.73) to its 52-week high ($35.69). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has TENB been declining?
The current 42.7% decline accrued over 308d, which annualizes to roughly -50.6% per year. Annualized pace is a sanity check — a 30% decline in three months is a different signal than a 30% decline over two years.
How does TENB compare to its sector?
There are 172 other Technology tickers on Broken Stocks: 118 Red, 36 Amber, 18 Watch, with 46 showing recovering structural signals. Median sector decline is -44.4% — TENB's decline is shallower than the sector median.
Does TENB's earnings date affect its tier?
No. Tiering is decided purely by decline depth and recency of the rolling-high date. The earnings date on file (2026-04-29) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.