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Costco (COST) was a standout performer in a declining market, with its stock price rising by 2% to $505.65.

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COST in upward trend: price expected to rise as it breaks its lower Bollinger Band on August 20, 2026

COST may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options. In of 31 cases where COST's price broke its lower Bollinger Band, its price rose further in the following month. The odds of a continued upward trend are .

Technical Analysis (Indicators)

Bullish Trend Analysis

COST moved above its 50-day moving average on August 21, 2026 date and that indicates a change from a downward trend to an upward trend.

The 10-day moving average for COST crossed bullishly above the 50-day moving average on August 06, 2026. This indicates that the trend has shifted higher and could be considered a buy signal. In of 18 past instances when the 10-day crossed above the 50-day, the stock continued to move higher over the following month. The odds of a continued upward trend are .

Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where COST advanced for three days, in of 359 cases, the price rose further within the following month. The odds of a continued upward trend are .

Bearish Trend Analysis

The Stochastic Oscillator may be shifting from an upward trend to a downward trend. In of 62 cases where COST's Stochastic Oscillator exited the overbought zone, the price fell further within the following month. The odds of a continued downward trend are .

The Momentum Indicator moved below the 0 level on August 20, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on COST as a result. In of 75 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are .

The Moving Average Convergence Divergence Histogram (MACD) for COST turned negative on August 20, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 48 similar instances when the indicator turned negative. In of the 48 cases the stock turned lower in the days that followed. This puts the odds of success at .

The 50-day moving average for COST moved below the 200-day moving average on August 04, 2026. This could be a long-term bearish signal for the stock as the stock shifts to an downward trend.

Following a 3-day decline, the stock is projected to fall further. Considering past instances where COST declined for three days, the price rose further in of 62 cases within the following month. The odds of a continued downward trend are .

The Aroon Indicator for COST entered a downward trend on July 21, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.

Fundamental Analysis (Ratings)

The Tickeron Profit vs. Risk Rating rating for this company is (best 1 - 100 worst), indicating low risk on high returns. The average Profit vs. Risk Rating rating for the industry is 63, placing this stock better than average.

The Tickeron SMR rating for this company is (best 1 - 100 worst), indicating strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.

The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating fairly steady price growth. COST’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.

The Tickeron PE Growth Rating for this company is (best 1 - 100 worst), pointing to average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.

The Tickeron Valuation Rating of (best 1 - 100 worst) indicates that the company is significantly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: COST's P/B Ratio (12.547) is slightly higher than the industry average of (7.193). P/E Ratio (47.673) is within average values for comparable stocks, (37.617). COST's Projected Growth (PEG Ratio) (4.598) is slightly higher than the industry average of (2.850). Dividend Yield (0.006) settles around the average of (0.014) among similar stocks. P/S Ratio (1.435) is also within normal values, averaging (1.065).