Builders FirstSource, listed on the NYSE as BLDR, exhibits a bullish outlook based on Elliott Wave Theory. The stock has shown a strong impulsive rise leading to the peak of wave (I), followed by a corrective phase. This correction formed a W-X-Y pattern and likely concluded at wave (II) within a blue box support area.
During wave (II), prices tested key Fibonacci levels around 118.91 and the deeper 66.76 mark. These levels provided significant support, stabilising the market. The Right Side tag favours the bullish direction, maintaining the structure’s validity if prices stay above support levels. Following stabilization, BLDR began moving higher, indicating the start of wave ((1)) in a new bullish cycle.
With wave (II) potentially completed, wave (III) is expected to drive a strong impulsive advance. Historically, third waves are the longest and strongest in Elliott Wave structures, often breaking previous highs. This phase could challenge recent highs and push towards new all-time records, driven by robust momentum and positive cycle alignment.
The long-term bullish trend leads to a recommendation against selling the stock. As long as the structure remains above the invalidation level, and the bullish sequence is respected, the market outlook remains optimistic.
The technical structure for Builders FirstSource suggests the prolonged corrective phase, wave (II), is now complete. We see the stock as having established a significant bottom inside the support zone noted throughout 2025. This implies that the path of least resistance has decisively shifted to the upside for the coming weeks and months.
This bullish outlook is reinforced by strengthening fundamentals. Looking back, the housing market slowdown of 2025, which saw mortgage rates peak, appears to be reversing, with the latest December 2025 housing starts report showing a 4.2% increase, beating analyst expectations. This economic tailwind supports the thesis that a new impulsive wave higher in the stock is beginning right now.
For derivative traders, this signals a time to position for upward momentum. We are looking at buying at-the-money or slightly out-of-the-money call options with expirations in March and April 2026 to capture the initial thrust of wave (III). Using bull call spreads could also be an effective way to lower the cost of entry while defining risk.
An alternative strategy is to sell cash-secured puts or bull put spreads on any minor dips. A brief, corrective pullback for wave ((2)) would likely increase implied volatility, creating more attractive premiums for sellers. We see the lows from the fourth quarter of 2025, around the $165 level, as a strong area of support to sell against.
Historically, the third wave in an Elliott sequence is the most powerful, often exceeding the gains seen in the first wave. The rally from the 2022 lows to the 2024 peak gives us a template for the potential force of this next move. Therefore, we believe that being under-invested or attempting to short this name would be fighting a very strong primary trend.
