Insider buying last 90 days
No open-market insider purchases were filed for BLDR in the last 90 days.
From Form 4 filings, dated to when each was filed.
Sep 28 close
Builders FirstSource shares have stayed under pressure this week, extending a decline tied to second-quarter results released on 30 July. That quarter showed net sales down roughly 8.8% to $3.86 billion, with adjusted EPS of $1.17 missing the $1.28 estimate, and gross profit weakness carried over from a soft housing market spanning single-family, multifamily and repair and remodel activity. Stifel reiterated a Hold rating with a $65.00 price target on 24 September, and shares have traded near their 52-week low amid broader housing-materials weakness and higher bond yields pressuring rate-sensitive names.
BLDR closed at $58.01, down 2% on the day, sitting below both its 50-day average of $66.99 and 200-day average of $86.60, with the stock down 13.7% over the past month and 50.4% over the past year. The GekkoIndex reads 63.7, placing it in the Accumulation zone. Gekko Fair Value stands at $93.08, putting the current price 37.7% below that mark.
The next earnings date falls on 29 October, 30 days out and beyond a typical 20-day holding window. Over the last 90 days, Congress recorded 1 buy and 0 sells, while the last 30 days show 1 unusual options signal with call premium of $324,905 against no put premium. Seasonally, the next 20 trading days have averaged -1.6% over 5 years, rising in 3 of those years, a mixed backdrop worth noting alongside the stock's typical 20-day move of 9.7%.
Written by AI and checked automatically against the figures on this page. Generated Sep 29, 2026 from the data above.
Builders FirstSource scores 4 supportive, 1 mixed and 1 headwind across the 6 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
4 supportive1 mixed1 headwind
Below 50 and 200-day
Close $58.01 is below the 50-day ($66.99) and 200-day ($86.60) averages, and the 50-day is below the 200-day.
See the chart63.7, Accumulation
Reading 63.7 is in the Accumulation zone.
See the GekkoIndex37.7% below
Price is 37.7% below Gekko Fair Value (more than 5% below).
See fair valueLeans bullish
Last 90 days: Congress 1 buy / 0 sales. Last 30 days: 1 unusual options signal.
See smart moneyReports in 30 days
Next report Oct 29, 2026, 30 days away — outside a typical 20-trading-day hold.
See earnings−1.6% on average
From this point in the calendar, the next 20 trading days averaged −1.6% over 5 years, rising in 3 of them.
See seasonalityA description of current data, not a recommendation. How this page works
Builders FirstSource closed at $58.01 on Sep 28, 2026, −50.4% over the past year, inside a 52-week range of $56.56 to $131.50.
Use the left and right arrow keys to read daily values.
Put BLDR on a Gekko watchlist and see its GekkoIndex, Gekko Fair Value and smart money signals update on the chart as they change.
Builders FirstSource makes and delivers building materials, ready-made components, and construction services aimed at professional homebuilders, sub-contractors, remodelers, and everyday consumers. Among the items it turns out are roof and floor trusses built in factories, wall panels, stairs, vinyl windows, custom millwork and trim, plus engineered wood, covering both the framing and finishing stages of a construction job.
Its operations blend in-house manufacturing with distribution, so it produces a good portion of what it then supplies to builders and contractors working on housing projects. The people it serves are mainly professionals in home construction, along with remodelers and consumers seeking building supplies directly.
Kevin P. O'Meara, Donald F. McAleenan, and John D. Roach started the company back in March 1998, and its main offices sit in Irving, Texas. The stock trades on the NYSE, where it goes by the ticker BLDR.
Builders FirstSource’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 63.7, in the Accumulation zone, down 8.9 points over five sessions.
Down 8.9 points over five sessions, from the Buying zone.
Reading for Sep 28, 2026
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 69 | −0.2% | +1.1% | ||
| Accumulation (current zone) | 287 | −0.7% | −2.7% | ||
| Neutral | 291 | −0.5% | −3.4% | ||
| Distribution | 24 | −1.5% | +1.0% | ||
| Selling | 1 | Too few readings yet | |||
Average BLDR share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.3% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
Builders FirstSource trades 37.7% below Gekko Fair Value of $93.08, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what Builders FirstSource shares are worth, recalculated every trading day.
$93.08
Gekko Fair Value, Sep 29, 2026
37.7% Undervalued
No open-market insider purchases were filed for Builders FirstSource, and members of Congress disclosed 1 purchase and 0 sales, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
No open-market insider purchases were filed for BLDR in the last 90 days.
From Form 4 filings, dated to when each was filed.
1trade disclosed: 1 purchase and 0 sales.
| Member | Amount | Disclosed |
|---|---|---|
| Ro Khanna House, CA, purchase | $1,001 - $15,000 | Aug 12 traded Jul 7 |
From congressional disclosures, which report amounts as ranges.
Builders FirstSource has been buying back its own shares.
From company filings.
1signal, 100% of the flagged premium in calls.
Latest: Bullish flow on Sep 23, $325K in unusual premium.
2of the funds Gekko tracks hold BLDR.
Builders FirstSource reports on Oct 29, 2026, before the open (30 days away), and beat the EPS estimate in 4 of its last 8 reports.
Oct 29, 2026
Expected before the open, 30 days away
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Jul 30, 2026 | $1.17 est $1.29 | $3.86B est $3.91B | −1.9% |
| Apr 30, 2026 | $0.27 est $0.90 | $3.29B est $3.17B | −9.2% |
| Feb 17, 2026 | $1.12 est $1.30 | $3.36B est $3.45B | −0.7% |
| Oct 30, 2025 | $1.88 est $1.75 | $3.94B est $3.86B | +0.8% |
| Jul 31, 2025 | $2.38 est $2.35 | $4.23B est $3.86B | +3.2% |
| May 1, 2025 | $1.51 est $1.53 | $3.66B est $4.31B | −4.6% |
| Feb 20, 2025 | $2.31 est $2.21 | $3.82B est $3.89B | −5.1% |
| Nov 5, 2024 | $3.07 est $2.98 | $4.23B est $4.44B | +2.5% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
Analysts’ average 12-month price target for Builders FirstSource is $80.62, +39.0% from the last close, from 17 firms rating the stock in the last 90 days.
Each firm’s latest rating in the last 90 days: 17 firms.
| Date | Firm | Target | vs price |
|---|---|---|---|
| Sep 11 | Wells Fargo | $63 | +8.6% |
| Aug 21 | Citizens JMP | — | — |
| Aug 10 | Goldman Sachs | $90 | +55.1% |
| Aug 6 | BMO Capital | $80 | +37.9% |
| Aug 4 | Wells Fargo | $65 | +12.0% |
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
Over the next 20 trading days from Sep 29, Builders FirstSource averaged −1.6% across the last 5 years, rising in 3 of them.
| Window | Average | Years higher |
|---|---|---|
| Next 5 trading days | +1.9% | 2 of 5 |
| Next 10 trading days | +1.1% | 3 of 5 |
| Next 15 trading days | −1.6% | 3 of 5 |
| Next 20 trading days | −1.6% | 3 of 5 |
| Next 30 trading days | +3.4% | 2 of 5 |
For scale, BLDR’s typical 20-trading-day move in either direction is about 9.7%.
Builders FirstSource’s market cap is $6.24B, with a P/E ratio of 64.3 and revenue of $14.45B over the last twelve months.
Coverage of Builders FirstSource this week reads negative: 3 positive, 2 neutral and 4 negative headlines.
Builders FirstSource’s 3 largest industry peers by market value, with today’s move, GekkoIndex zone and gap to Gekko Fair Value.
| Stock | GekkoIndex zone | vs Fair Value |
|---|---|---|
| HDHome Depot | Buying | 9.2% below |
| LOWLowe's Companies | Buying | 6.3% below |
| FNDFloor & Decor | Accumulation | 16.1% below |
A peer links to its own page where one exists.
Builders FirstSource’s market cap is $6.24B at the Sep 28, 2026 close of $58.01, with 107.6M shares outstanding. The shares trade on a P/E ratio of 64.3.
The consensus analyst 12-month price target for Builders FirstSource is $80.62, +39.0% from the last close. Of the 17 firms that rated the stock in the last 90 days, 9 rate it a buy, 8 a hold and 0 a sell. Gekko doesn’t publish price predictions of its own.
On Gekko’s estimate Builders FirstSource is undervalued: the Sep 28, 2026 close of $58.01 is 37.7% below Gekko Fair Value of $93.08. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
Builders FirstSource is expected to report on Oct 29, 2026, before the market opens (30 days away). Analysts expect earnings of $1.09 per share on revenue of $3.77B. Builders FirstSource beat the earnings estimate in 4 of its last 8 reports, moving 3.5% on average across the report.
Builders FirstSource’s 52-week high is $131.50 and its 52-week low is $56.56; it closed at $58.01 on Sep 28, 2026, −50.4% over the past year. Over the last five years the shares peaked at $214.70 on Mar 21, 2024.
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 4 of the 6 items with data read as supportive (gekkoindex, fair value, smart money and earnings risk), 1 as mixed (seasonality) and 1 as a headwind (trend). The checklist is a description of current data, not a recommendation.
Gekko flagged 1 unusual options signal in Builders FirstSource over the last 30 days, with $325K of flagged premium in calls and $0 in puts. The latest, bullish flow, was on Sep 23, 2026 with $325K in unusual premium. The signal-by-signal table is in Gekko.
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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