$1,000 in Builders FirstSource, Inc. in 2020 → $4,465 today
If you'd invested $1,000 in Builders FirstSource, Inc. (BLDR) in 2020, buying at the March 2020 month-end close of $12.24 (the first in this price history), and held to the latest close on 2026-10-16, you'd have $4,465. That's a +346.5% price return. Through September 2026, the latest month the fund has reported, the same $1,000 became $4,660 in BLDR and $3,252 in an S&P 500 index fund (TSP C Fund). The fund figure includes reinvested dividends; the stock figure does not, so the comparison favors the fund.
Nearby years: 2021 · 2022 · 2023 · 2024 all years →
FAQ
How much is $1,000 invested in BLDR in 2020 worth today?
$4,465 at the latest close (2026-10-16), a price return of +346.5%.
Did $1,000 in BLDR in 2020 beat the market?
Yes. From the March 2020 month-end through September 2026, BLDR beat an S&P 500 index fund by 43.3%: the fund (the TSP C Fund, dividends included) turned the same $1,000 into $3,252, and BLDR (price only) turned it into $4,660.
What does "month-end close" mean for this calculation?
It is a month's last price on IEX: the last regular-session trade on the month's final trading day. Here the buy is the March 2020 close and the position is valued at the latest close (2026-10-16).
Is the 2020–2026 return in BLDR typical?
No single year is typical. BLDR's best calendar year since 2020 was 2023, at +157.5%, and its worst was 2026 (year to date), at -46.9%.
Methodology
The figures use BLDR's price data from March 2020 through 2026-10-16.
The entry price is the March 2020 month-end close and the exit is the latest close, both from IEX Historical Data. Price return: adjusted for stock splits, dividends not included. The market comparison uses the TSP C Fund's monthly returns, published at tsp.gov.
Buying at a month-end close misses the highs and lows inside the month, and the figures ignore taxes and fees. To try another amount, month or monthly contribution, use the BLDR calculator, which also shows the best and worst entry points in your window.
Compute your own BLDR scenario
Prices as of the last IEX trade on 2026-10-16. Data delayed end-of-day.