$BLDR
Builders FirstSource, Inc.
XNYS•Consumer Discretionary•Retail-Lumber & Other Building Materials Dealers
Why is BLDR down today? It is at $70.32 (-3.07%), and our scanner flagged it 82 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment BLDR spikes, and full due diligence on BLDR — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $70.32
- Change today
- -3.07%
- Previous close
- $72.55
- 52-week range
- $65.10 – $151.03
- Market cap
- $7.57B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 8.0M ▲ +11% vs prior · as of 2026-07-31
- Days to cover
- 3.0d
- Avg daily volume
- 2.2M
- Sector
- Consumer Discretionary
- Industry
- Retail-Lumber & Other Building Materials Dealers
- Exchange
- XNYS
- 5m
- 1.0x
- 15m
- 1.0x
- 1h
- 0.9x
- 1D
- 0.5x
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Why is $BLDR down today?
BLDR is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on BLDR today, peaking at 6.3x its normal volume.
Analyst data via Nasdaq. Not investment advice.
Insiders
Insiders buying12 buys, 3 sells last 3 months (62/21 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Vaughn Paul Officer | Acquired (grant/award) | +3K | added 9.0% | 41K | n/a | Jul 18, 26 |
O'Brien Matthew Coley Officer | Acquired (grant/award) | +7K | n/a | 7K | n/a | Jul 18, 26 |
Vance Todd Officer | Acquired (grant/award) | +3K | added 8.6% | 43K | n/a | Jul 18, 26 |
Narayan Gayatri Officer | Sold (automatic/other) | -3K | sold 9.1% | 28K | $221K at $77.77 | Jun 13, 26 |
Herron Stephen J Officer | Sold (automatic/other) | -850 | sold 0.8% | 110K | n/a | Jun 5, 26 |
Hiller Michael Officer | Sold (automatic/other) | -900 | sold 1.7% | 52K | n/a | Jun 4, 26 |
Hayes William B Director | Acquired (grant/award) | +508 | added 2.7% | 20K | $39K at $76.26 | Jun 1, 26 |
Charles Dirkson R Director | Acquired (grant/award) | +409 | added 2.9% | 14K | $31K at $76.26 | Jun 1, 26 |
Levy Paul S Director | Acquired (grant/award) | +1K | added <0.1% | 1.73M | $80K at $76.26 | Jun 1, 26 |
Steinke Craig Arthur Director | Acquired (grant/award) | +491 | added 0.5% | 102K | $37K at $76.26 | Jun 1, 26 |
Renz Maria Director | Acquired (grant/award) | +426 | added 7.2% | 6K | $32K at $76.26 | Jun 1, 26 |
Alexander Mark A Director | Acquired (grant/award) | +409 | added 0.9% | 48K | $31K at $76.26 | Jun 1, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $BLDR. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$BLDR Sentiment
BearishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$BLDR Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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BLDR stock FAQ
Why is $BLDR down today?
BLDR is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on BLDR today, peaking at 6.3x its normal volume.
What is the BLDR stock price today?
BLDR last traded at $70.32, down 3.07% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live BLDR alerts?
The BLDR Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged BLDR 82 times in the last 30 days.
What exchange is BLDR on?
BLDR (Builders FirstSource, Inc.) trades on XNYS, with a market cap of about $7.57B in the RETAIL-LUMBER & OTHER BUILDING MATERIALS DEALERS sector.
Is BLDR good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge BLDR for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.