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Builders FirstSource, Inc. (BLDR) Corporate Logo

Builders FirstSource, Inc. (BLDR) Stock Price & Analysis

Market: NYSE • Sector: Industrials • Industry: Construction

Builders FirstSource, Inc. (BLDR) Profile & Business Summary

Builders FirstSource, Inc., together with its subsidiaries, manufactures and supplies building materials, manufactured components, and construction services to professional homebuilders, sub-contractors, remodelers, and consumers in the United States. It offers lumber and lumber sheet goods comprising dimensional lumber, plywood, and oriented strand board products that are used in on-site house framing; manufactured products, such as wood floor and roof trusses, steel roof trusses, wall panels, stairs, and engineered wood products; and windows, and interior and exterior door units, as well as interior and exterior trims and custom products under the Synboard brand name. The company also offers gypsum, roofing, and insulation products, including wallboards, ceilings, joint treatments, and finishes; and siding, metal, and concrete products, such as vinyl, composite, and wood siding products, as well as exterior trims, other exteriors, metal studs, and cement products. In addition, it provides other building products and services, such as cabinets and hardware, as well as turn-key framing, shell construction, design assistance, and professional installation services. The company was formerly known as BSL Holdings, Inc. and changed its name to Builders FirstSource, Inc. in October 1999. Builders FirstSource, Inc. was founded in 1998 and is based in Dallas, Texas.

Key Information

Ticker BLDR
Exchange NYSE
Official Site https://www.bldr.com
CIK Number 0001316835
View SEC Filings

Market Trend Overview for BLDR

One model, two time views: what the market looks like right now, and where the larger trend is heading over time.

Longer-Term Market Trend (Mid to Long Term)

Shows the bigger market trend, how strong it is, and where risks may start to build over the next few weeks or months. — Updated as of 2026-03-25 (ET)

As of 2026-03-25, BLDR is moving sideways without a clear direction. Over the longer term, the trend remains bearish.

BLDR last closed at 85.41. The price is about 0.6 ATR below its recent average price (88.07), and the market is currently in a sideways market without a clear direction. Price at 85.41 is moving between minor support near 80.00 and minor resistance near 91.40. Direction remains unclear. View Support & Resistance from Options

The market is moving sideways, with no clear direction. Both upside and downside risks remain in play.

Trend Alignment Summary

Trend score: 35 out of 100. Overall alignment is unclear. The market is currently in a sideways market without a clear direction. The longer-term trend is still negative, but short-term signals are not yet confirming it.

Key Risk Level

There is no clear risk level acting as a key boundary right now.

Recent Trend Signal

On 2026-02-18, trend conditions deteriorated, suggesting that moves in the prior direction became less dependable.

Recent Price Behavior

Recent bars show mixed price behavior without a clear shift in structural quality or efficiency.

Overnight Positioning

Some late-day positioning was observed, but it lacked strong overnight commitment.

Next-day directional probability forecast Last updated: 2026-03-25 (ET)
Next-session outlook for 2026-03-26 (ET)
No clear next-day edge

What the model sees

The model stays neutral because the setup is not clear enough to justify a directional deployment.


Why the model says this

The model does not deploy this setup because predictability is still too low and price is still close to a gamma transition zone. Predictability is 26%, agreement is 62%, and reversal risk is 37%.

NOTE: This next-day up/down probability forecast module is still being tested for accuracy. Please do not rely on it for investment decisions. The model does not account for black swan events or company-specific fundamental news, and its estimates are based solely on technical conditions, capital flow, and market sentiment. View forecast history

Recent Cost Distribution Last updated: 2026-03-25 (ET)

This reading is based on the last 20 trading days of 15-minute price, volume, and VWAP data. Price is trading 4.3% below the recent estimated cost basis of 89.20, so the recent structure is still leaning under pressure. Price is below the main cost band (87.04 to 93.15), and roughly 69% of recent positioning remains under water. That means rebounds can still run into supply from trapped holders. The lower down support area sits around 81.28 to 81.63. The higher up selling area sits around 86.57 to 88.57, and overhead supply looks fairly concentrated there. From a trading point of view, this setup remains tougher until price can reclaim the lower edge of the main cost band near 87.04.

Short Interest & Covering Risk for BLDR

This analysis looks at overall short interest positioning, focusing on the broader setup rather than short-term noise.

Squeeze Score 0.92

Shows how likely a short squeeze may be under current market conditions.

Key Market Risk Indicators
Short Crowding (Short Interest / Float) 5.19%
Short Positions Trend Increasing
Liquidity Trend (Average Daily Volume) -5.43%
20-Day Return -16.78%
Price vs 20-Day High Below Recent Highs

Short Exposure Percentile

Short interest is within its typical range, with no clear imbalance between buyers and sellers. (Historical percentile: 50%)

Structure Analysis

BLDR Short positioning looks normal. Current days to cover is 2.6 trading days, meaning short positions could unwind at a normal pace. Short covering is likely to have a normal impact on price moves. Price is already trending lower (20D return -16.8%). The current configuration reflects active downside pressure rather than latent structural fragility.

Risk Summary

No clear bull trap characteristics detected. Recent price behavior remains broadly consistent with current positioning.This reading helps confirm that current price action remains structurally healthy and does not indicate elevated trap risk.

Why Price Reactions May Be Stronger?

Days-to-Cover is elevated versus its own history, but absolute short interest remains moderate. In the latest reporting period, short interest continues to increase. Adaptive thresholds applied to liquidity weakness, near-high detection, and compression sensitivity. As a result, similar news or market events could lead to price moves about 1× larger than usual.


Note: Short interest data is reported every two weeks by FINRA. The most recent snapshot is 2026-02-27 (ET).
Because this data updates slowly, it is not intended to predict short-term price moves. Instead, it helps describe longer-term market structure and where pressure may be building if prices begin to move.

Analytical Modules