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AI Post-Earnings Action Report

Catalyst Review & Featured Setup: COST

Week of September 20, 2026

Download PDF — Post-Earnings Action Report

Individual Reports
AZOCOSTCTASDRIGISKBHPAYXSNX

Executive Summary

TL;DR7 of 8 beat EPS (88%), and 4 gaps held the 3-day rule. 1 accelerating, 5 reversing, 2 in volatility crush.

Full summary
During the week ending September 20, 2026, 7 out of 8 reporting stocks beat EPS estimates, with 1 missing. Of the 8 stocks, 4 gaps held after three days. AZO recorded the biggest gap up at +3.2%, and SNX experienced the largest gap down at -9.0%.

The week's activity was dominated by Trend Reversal setups, accounting for 5 of the 8 stocks. Notable gaps that held included AZO (+3.2%), DRI (-2.3%), PAYX (-4.2%), and SNX (-9.0%), suggesting potential follow-through in these post-earnings moves. The prevalence of reversal categories indicates a focus on shifts in existing trends.

Sector Backdrop — 5-Day Tide

Where the institutional money is flowing this week. SPY 5D: -0.2%. Earnings landings into leading sectors get a tailwind; landings into lagging sectors fight a headwind.

Leaders
XLF Financials +0.6% XLV Healthcare +0.5% XLI Industrials +0.4%
Laggards
XLU Utilities -2.1% XLRE Real Estate -1.3% XLY Consumer Discretionary -1.0%

Position Changes This Week

New Buy Entries

Position Exits

Featured Post-Earnings Setup: COST🟡 NEUTRAL · XLP -0.7% · #7/11 📊 Open Stock Analysis ↗

Why Featured: COST beat EPS estimates by +3.2% yet remains below its 5-month trend line for 18 straight weeks, a classic setup where good news meets broken structure. The stock gapped down initially before reversing intraday to reclaim $922.77, but relative strength versus its sector is still flat-to-declining. This tension between a fundamental beat and a stalled macro trend makes it this week's key post-earnings watch.

Earnings Resolution

Post-Earnings Technical Assessment

The Setup Verdict

🔮 Scenarios (30-60 Days)

🟢 Bull: $1079.78 (+17.0%) — Price reclaims its 5-month trend line and relative strength turns higher.

🟡 Base: $925.75 (+0.0%) — Price consolidates between support and resistance as the trend stays undecided.

🔴 Bear: $891.30 (-3.4%) — Rally fails at resistance and the broken medium-term trend reasserts itself.

Final Verdict: MONITOR. With price below its 5-month trend line and flat relative strength, watch $929.51 resistance and $891.30 stop before adding exposure.

🔬 COST - Deep Technical Scan

RSI (14)
2.0
Oversold
MACD Histogram
1.727
Bullish
ADX
16.7
Weak trend
BB Position
66%
Mid-range
Confluence
0B / 0S
N/A
Signal
HOLD
Downtrend
ML Probability
40% next day up
5d 45% | 20d 59%
Backtest Win Rate
42%
10W / 14L (24 trades)
Avg Trade P&L
+2.3%
Best: +44.8% / Worst: -8.9%
SUPPORT
$921.99
STOP LOSS
$891.30
RESISTANCE
$929.51

📊 Fundamental Snapshot

P/E Ratio
44.4
Forward P/E
40.5
Rev Growth
+11.1%
Analyst Upside
+17.0%

🤖 COST - AI Deep Analysis

Powered by Gemini 2.0 Flash · AI Sentiment grounded with Google Search

🎯 Price Targets

THE ANALYST CONSENSUS:
• Average Target: $1079.78 (+17.0% Upside)
• High Target: $1275.00

RISK/REWARD:
• Upside to Bull: +17.0%
• Downside to Bear: -3.4%
• Verdict: Favorable (5.0:1 reward-to-risk ratio with well-defined downside support)

⚠️ Risk Assessment

1. THREAT LEVEL: CRITICAL
* Why: You are attempting a trade directly against a prevailing Bearish trend with razor-thin clearance ($0.77) above immediate support and zero institutional confluence backing the position.

2. THE #1 KILLER:
* Risk: Immediate Breakdown of the $921.99 Support Level.
* Consequence: A failure at $921.99 immediately confirms the prevailing bearish trend, causing an air pocket drop toward the wide -3.4% stop loss at $891.30 with zero intermediate support structures to slow the decline.

3. RISK FACTOR BREAKDOWN:
* Technicals: The active trend is Bearish, while an ADX of 16.7 signals a weak, non-trending, choppy environment ripe for high-volatility downside expansion.
* Levels: Price ($922.76) is dangerously close to immediate Support ($921.99) and heavily capped by overhead Resistance at $929.51, presenting an asymmetrical risk exposure relative to the distant $891.30 stop.
* Psychology: A lukewarm 52.3 RSI coupled with a 30-day absence of any confluence events shows a complete lack of buyer conviction and zero smart-money accumulation.

4. WORST CASE SCENARIO:
* Support at $921.99 fails on a volume spike, triggering a cascading liquidation down into the $891.30 stop loss to lock in a severe -3.4% loss ($31.46 per share).

📰 AI Sentiment Google Search Grounded

HEADLINE STORY:
Costco Wholesale Corporation (COST) announced robust fourth-quarter and fiscal year 2026 operating results, with net sales for the quarter climbing 11.2% to $93.9 billion and diluted earnings per share reaching $6.75, partly boosted by non-recurring tariff refunds. The company also outlined plans for significant expansion in fiscal year 2027, targeting approximately $7.5 billion in capital expenditures and 33 new warehouse openings.

RAPID FIRE:
• Revenue: $303.2B (+11.1% YoY)
• EPS: $22.79 (+0.0% YoY)
• Key Driver: Strong Q4 sales and tariff refunds

SENTIMENT GAUGE:
Verdict: MIXED
The Reality: While Costco exceeded Q4 earnings and revenue expectations, driven by strong comparable sales and a surge in digitally-enabled transactions, the stock experienced an initial rise followed by a slight dip in premarket trading. Analyst reactions have been varied, with some adjusting price targets downwards despite the strong performance, partly due to concerns over slowing membership growth and the non-recurring nature of tariff benefits.

STRENGTHS & RISKS:
Positive: Costco's fourth-quarter net sales increased 11.2% to $93.9 billion, with diluted EPS rising to $6.75, which included a $0.15 per diluted share benefit from tariff refunds. The company also saw a 19.5% increase in digitally-enabled sales and plans to open 33 new warehouses in fiscal year 2027 with a capital expenditure of approximately $7.5 billion.
Risk: Analysts have expressed concerns regarding the slowing growth of membership and the long-term impact of price investments, while the tariff refunds that positively impacted Q4 earnings are a non-recurring item.

TRADER'S TAKEAWAY:
Despite strong reported Q4 results and ambitious expansion plans, the non-recurring nature of tariff benefits and ongoing analyst questions about membership growth suggest a cautious approach for traders.

⚖️ Peer Benchmarking — COST vs WMT, AMZN

Powered by Gemini 2.0 Flash · Two-Brain Architecture (Analyst + News Hunter)

MetricCOSTWMTAMZN
Price$922.76$107.98$249.67
TrendSidewaysSidewaysDowntrend
RSI52.349.544.5
ADX16.711.510.3
P/E44.439.020.1
Fwd P/E40.537.419.5
Rev Growth+11.1%+5.9%+19.6%
EPS Growth+15.0%-9.1%+242.3%
Debt/Equity0.240.720.46
Beta0.850.591.44
Win Rate42%57%50%
SentimentSlightly BullishSlightly BullishNeutral

⚖️ AI Head-to-Head Comparison

# TOP RANKED: AMZN
> Reason: Amazon dominates on valuation (20.1 P/E vs. 44.4 for COST) and explosive fundamentals (19.6% revenue growth, +242.3% EPS growth) while maintaining an intact, rising 5-month trend line unlike its peers.

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HEAD-TO-HEAD BREAKDOWN



1. TREND


• COST: Short-term trend is weak (ADX 16.7), and its medium-term trend is broken after remaining below its 5-month trend line for 18 consecutive weeks with the broader trajectory rolling over. Confluence is neutral (0/7).
• WMT: Sits in a low-momentum bearish drift (ADX 11.5) and is trapped below its 5-month trend line for 19 weeks with a rolling-over trajectory, though it triggered moderate bullish confluence (4/7) recently.
• AMZN: While daily momentum shows a bearish MACD, it has only slipped below its 5-month trend line for 1 week, and its broader 5-month trend is rising ($252.32 benchmark). Weak bullish confluence (3/7).
Leader: AMZN 🏆 (Possesses the least macro damage as its broader 5-month trend is still rising).*

2. GROWTH


• COST: Solid revenue expansion of 11.1% and YoY EPS growth of 15.0%, with +17.0% analyst upside ($1,079.78 target).
• WMT: Sluggish top-line growth at 5.9% and contracting earnings (-9.1% YoY EPS growth), offering +16.1% analyst upside ($125.33 target).
• AMZN: Category blowout with 19.6% revenue growth, a massive 242.3% YoY EPS acceleration, 17.4% profit margins, and a Street-high +31.6% upside ($328.63 target).
• Leader: AMZN 🏆

3. VALUE


• COST: Heavily premium pricing across the board with a 44.4 P/E, 40.5 Forward P/E, and an expensive 4.31 PEG.
• WMT: Elevated valuation for defensive retail at a 39.0 P/E, 37.4 Forward P/E, and 3.74 PEG.
• AMZN: Substantially undervalued relative to its peers at a 20.1 P/E, 19.5 Forward P/E, and an attractive 1.67 PEG.
• Leader: AMZN 🏆

4. SAFETY


• COST: Lower market volatility (Beta 0.85) and tightest structural risk (-3.4% stop loss at $891.30), but a weak historical backtest win rate of 42% (+2.3% avg return).
• WMT: Best defensive profile with an ultra-low Beta of 0.59, modest downside risk (-4.0% stop loss at $103.70), and the most reliable historical backtest win rate at 57% (+3.0% avg return).
• AMZN: Highest volatility (Beta 1.44) and widest risk buffer (-4.7% stop loss at $238.05), though it delivers the highest backtest profitability (+5.6% avg return, 50% win rate).
• Leader: WMT 🏆

5. FLAGS


• COST: ⚠️ High valuation multiples (44.4 P/E) coupled with an 18-week broken medium-term trend and weak historical win rate (42%).
• WMT: ⚠️ Earnings contraction (-9.1% YoY EPS), very low momentum (ADX 11.5), and prolonged structural weakness under its rolling 5-month trend line.
• AMZN: ⚠️ Higher market sensitivity (Beta 1.44), an active daily bearish MACD, and a narrow test below its primary $249.98 resistance.

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BOTTOM LINE


AMZN is the superior selection, offering more than double the growth and upside (+31.6%) at half the P/E multiple (20.1) of both COST and WMT, while maintaining a fundamentally rising medium-term trajectory.

📰 AI Sentiment Comparison Google Search Grounded

SENTIMENT COMPARISON:

COST: MIXED — Costco reported strong Q4 2026 earnings, beating revenue and EPS estimates, with positive indicators in digital sales and membership growth, but several analysts have lowered price targets due to valuation concerns.
WMT: NEUTRAL — Recent news includes Walmart's statement that its retail giant and AI shopping assistant are not using personal information to set prices, addressing privacy concerns.
AMZN: BULLISH — Amazon has several positive developments, including new AI integrations on Amazon Bedrock, expansion of Prime delivery services for merchants, and a positive outlook from analysts on future earnings.

NEWS EDGE: Amazon (AMZN) has the strongest near-term catalyst due to multiple recent announcements related to AI advancements on its Bedrock platform and the expansion of its Prime delivery services for merchants, which could drive further growth and market penetration.

CATALYST TIMELINE:
COST:
• Upcoming Earnings: Estimated for Thursday, December 10, 2026 (After Market).
• Product Launches: Ongoing new product arrivals in September 2026.

WMT:
• Upcoming Earnings: Estimated for Thursday, November 19, 2026 (Before Open).
• Product Launches: Walmart Start beauty brand accelerator program expects brands to launch between December 2025 and March 2026.

AMZN:
• Upcoming Earnings: Estimated for Thursday, October 29, 2026 (After Close).
• Product Launches: Prime Big Deal Days are scheduled for October 6-7, 2026, offering exclusive deals for Prime members.

Earnings Scorecard

TL;DRBiggest move up AZO +3.2%, down SNX -9.0%. A gap that holds three days is the one worth trading.

Metric Ticker Value
Biggest Gap Up AZO +3.2%
Biggest Gap Down SNX -9.0%
Strongest Intraday Reversal COST +4.0% swing
7 of 8 beat EPS • 4 gaps held after 3-day rule

Volatility & Trend Resolution

TL;DR1 names cleared earnings and kept going — the buy setups. 5 gave the move back. 2 went quiet and are a wait, not a trade.

Trend Accelerators — Buy Setups (1)

Uptrend + EPS beat + gap held + price above support: CTAS (-1.0%)

Trend Reversals — Watch List (5)

Downtrend + beat or capitulation bounce: AZO (+3.2%), COST (-1.1%), GIS (+0.8%), KBH (+3.2%), PAYX (-4.2%)

Volatility Crush — Wait (2)

Wide range, gap faded, no clear direction: DRI (-2.3%), SNX (-9.0%)

AI Recommended Action Items

DISCLAIMER: This report is for informational and educational purposes only and does not constitute investment advice. Ultra Stock Analysis Pro is not a registered investment advisor; information is impersonal and not tailored to individual circumstances. AI-generated content may contain errors — verify before acting. Past performance is not indicative of future results. Technical analysis based on historical data through September 26, 2026. Please conduct your own due diligence before making investment decisions. Individual investment decisions should be made based on personal financial circumstances and risk tolerance. Always consider consulting a qualified financial advisor before making investment decisions.