Mild upside for Costco stock — technicals warn of subdued momentum post-earnings

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Costco rises 0.50% to $876.02 today

Highlights

Costco reported Q1 2026 revenue of $67.31 billion, up 8.2% year-over-year, with net income reaching $2.00 billion driven by higher memberships and strong core merchandising.
The company completed its $2.25 billion share repurchase program that began in January 2023, returning capital to shareholders.
A $400,000 lobster delivery intended for Costco was hijacked en route, prompting an FBI investigation, though supply chain disruption impact is not specified.

Membership gains lift sales amid share buybacks and supply chain drama

Costco reported strong first-quarter 2026 results, with revenue reaching approximately $67.31 billion and net income of $2.00 billion. The company completed a $2.25 billion share repurchase program that began in January 2023. Q1 revenue rose 8.2% year-over-year, driven by higher membership and robust core merchandising categories. Additionally, Sports Research expanded product offerings at Costco locations, and there was a report of a $400,000 lobster delivery hijacked while en route to stores, which is under FBI investigation.

Conflicting momentum limits confirmation as buyers test intraday highs

Momentum indicators on the daily timeframe show mixed signals. MACD is negative and points to continued weakness, while the ADX is low, indicating a weak trend. Both RSI (43.87) and CCI are neutral to bearish, with no oversold signs, but Stochastic RSI and BBP readings indicate overbought, buyer-dominated conditions intraday. The Awesome Oscillator is neutral, failing to confirm a cohesive direction. Today, the stock opened slightly below the previous close (no gap) and is trading near its intraday high ($875.50), reflecting modest upside (+0.50%) in a narrow, low-volatility session with buyers showing strength after the open. Some divergence exists between overbought oscillators and weak overall momentum, suggesting this bounce is not strongly confirmed by broader trend signals.

Downside risk dominates as major resistance caps short-term range

Looking ahead, the expected five-day range is $861 to $879, keeping within a typical band around current levels given moderate volatility for blue-chip stocks. The probability of a price increase from here is very low (less than 20%), while the likelihood of further downside is more prominent, based on the uniform bearish signals from RSI, ADX, and MACD on the weekly timeframe, plus all major MAs acting as resistance overhead. The baseline scenario is for COST to remain in a sideways corridor between $861 and $879. A bullish case would require breaking above resistance near $885, which may open room to slightly higher levels, but current indicators make this less likely. In the bearish scenario, a break below $861 could trigger a push toward recent swing lows, as prevailing trend and momentum signals would support further declines.

Viktoras Karapetjanc, expert at Traders Union, sees current momentum and technical resistance limiting near-term upside in Costco despite strong fundamentals. He believes robust revenue growth and membership gains show the company’s core health, but market sentiment remains hesitant as all major moving averages cap further advances. The analyst notes tactical signals point to more sideways or downside action unless a break above $885 is achieved. "Longer-term prospects remain strong fundamentally, but in the short run, I would prefer to wait for a clear breakout above resistance before increasing exposure."

Last time, analysts noted that Costco is trading below key moving averages with persistent downside momentum, as technical signals including negative MACD, ADX, and weak RSI readings underscore a bearish short- to long-term trend. Nearest support and resistance converge around the $885 level, with mixed oscillators and volatility suggesting the stock is likely to remain range-bound and face further downside risk unless a breakout occurs.

Source of Data: COST Price Analysis by TU

The analysis is based on a proprietary model combining technical, on-chain, and expert data. Not investment advice. See methodology

The information is based on forecasts and does not constitute investment advice or a guarantee of future results. Market conditions may change. See our Disclaimer and Editorial Integrity for details.