QUALCOMM Incorporated (QCOM) vs Seagate Technology Holdings plc (STX): Which Is the Better Buy in 2026?
As of 2026-06-19, QCOM is overvalued at $226, with a DCF intrinsic value of $128 and a margin of safety of -76%. STX is overvalued at $1070, with an intrinsic value of $480 and a margin of safety of -123%. Of the two, QCOM has the wider margin of safety.
Rewards
- ★QUALCOMM Incorporated has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★QUALCOMM Incorporated scores 73/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Free cash flow has grown at a 23.3% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★PEG ratio of 0.71 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
- ★Altman Z-Score of 4.80 indicates very low bankruptcy risk — the company is firmly in the safe zone.
Risks
- ⚠FCF yield of 5.4% suggests reasonable valuation assuming continued moderate growth.
- ⚠15 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
- ⚠FCF yield of 0.7% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
- ⚠Trailing P/E of 101.7x is 273% above the historical average of 27.3x — the stock trades at a premium to its own history.
- ⚠High leverage (2.77x net debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
Key Valuation Metrics
Learn more →Historical Fundamentals
Learn more →Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
$1 Retained Earnings Test
Learn more →> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Discounted Cash Flow (DCF) Analysis
Learn more →Reverse DCF — Market-Implied Growth
Learn more →What growth rate is the market pricing in at $226?
The market implies +17.5% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +7.0%, reflecting heavy growth investment.
What growth rate is the market pricing in at $1070?
The market implies +37.3% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +36.0%, reflecting heavy growth investment.
Economic Moat Score
Learn more →Wide moat driven primarily by reinvestment efficiency. Revenue Predictability is the area most vulnerable to competitive pressure.
No durable moat detected, though reinvestment efficiency shows some competitive positioning. The business lacks consistent evidence of sustainable advantages.
Forensic Accounting
Learn more →M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Ownership Breakdown
Learn more →High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.
Insider Buying Activity
Learn more →Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.
🎭 Mr. Market's Mood
Learn more →"Market is pricing this stock without strong emotion in either direction"
"Market is optimistic — be cautious and ensure you have a margin of safety"
Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
⚖️ Buffett Signal
Learn more →The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
Frequently Asked Questions: QCOM vs STX
Is QUALCOMM Incorporated or Seagate Technology Holdings plc more undervalued in 2026?▼
Based on our discounted cash flow model, QCOM trades at a -76.1% margin of safety (intrinsic value $128 vs. price $226), compared to STX's -123.1% margin of safety (intrinsic $480 vs. $1070).
Which stock has a wider economic moat, QUALCOMM Incorporated or Seagate Technology Holdings plc?▼
QCOM scores 73/100 (Wide moat), while STX scores 32/100 (None moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.
Which company has better free cash flow, QUALCOMM Incorporated or Seagate Technology Holdings plc?▼
QUALCOMM Incorporated (QCOM) generates a 5.4% free cash flow yield, compared to Seagate Technology Holdings plc's 0.7%. A higher FCF yield means the business converts more of its market value into cash that can be returned to shareholders or reinvested.
Which stock has higher return on invested capital, QUALCOMM Incorporated or Seagate Technology Holdings plc?▼
STX earns 58.8% ROIC versus QCOM's 18.2%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.
Which dividend is safer, QUALCOMM Incorporated's or Seagate Technology Holdings plc's?▼
QCOM's dividend earns a safety score of 84/100 (Very Safe), compared to STX's 73/100 (Safe). QCOM has raised its dividend for 3 consecutive years.
Does Seagate Technology Holdings plc have accounting red flags?▼
STX's Beneish M-Score of -1.5 flags it as a likely earnings manipulator (above the -1.78 threshold). By contrast, QCOM scores -3.2, within the normal range. The Beneish model detects aggressive accounting through eight financial ratios.