Ally Bank vs. Capital One
High-Yield Savings Account Comparison
Last Updated: October 14, 2025
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Summary of Ally Bank vs. Capital One
Key Metrics at a Glance
| Feature | Ally Bank | Capital One |
|---|---|---|
| Top Savings APY | 3.40% Savings Account | 3.40% 360 Performance Savings |
| Minimum to Open | $0 | $0 |
| Minimum Balance for APY | $0 | $0 |
Ally Bank
Strengths
- Ally Bank offers a competitive APY of 3.40%, consistent over the past month.
- No minimum deposit or balance requirements for the Savings Account.
- Ally Bank has a solid App Store rating of 4.7.
Potential Drawbacks
- Ally Bank has no physical branches, limiting in-person service.
- The APY decreased from 3.50% to 3.40% in the last 30 days.
- Google Play rating is lower at 4.3 compared to Capital One.
Capital One
Strengths
- Capital One has over 200 branches, providing convenient access.
- Capital One's App Store rating is higher at 4.9.
- The 360 Performance Savings account also has a 3.40% APY.
Potential Drawbacks
- Capital One's APY decreased from 3.50% to 3.40% over the past month.
- Direct deposit is not required, but its absence may limit some features.
- Google Play rating is slightly lower at 4.5 compared to its App Store rating.
Summary: Both Ally Bank and Capital One offer a 3.40% APY on their high-yield savings accounts, but Ally is online-only while Capital One has over 200 branches. Ally Bank's App Store rating is 4.7, while Capital One leads with 4.9. Both banks saw a decrease in APY from 3.50% to 3.40% in the last month. Ally lacks physical branches, while Capital One provides in-person services.
→ As of 10/14/2025 both Ally Bank (Savings Account) and Capital One (360 Performance Savings) offer an APY of 3.40% .
→ Both banks yield $340 in interest on a $10,000 balance after one year. Neither has an APY advantage, so consider other features (fees, access, app ratings, etc.) when choosing.
Calculate Savings Growth for Ally Bank vs Capital One
All calculations are based on APY.
Ally Bank
APY: 3.40%
Total savings breakdown:
- Interest earned: $2,050.5 (10.23%)
- Total contributions: $13,000 (64.84%)
- Initial deposit: $5,000 (24.94%)
Your total balance
$20,050.50
Effective APY: 3.40% (based on your deposit and contributions)
Total balance: $20,050.5
Earnings: $2,050.5
Bank OverviewCapital One
APY: 3.40%
Total savings breakdown:
- Interest earned: $2,050.5 (10.23%)
- Total contributions: $13,000 (64.84%)
- Initial deposit: $5,000 (24.94%)
Your total balance
$20,050.50
Effective APY: 3.40% (based on your deposit and contributions)
Total balance: $20,050.5
Earnings: $2,050.5
Bank OverviewWith a $5,000 initial deposit and $13,000 in total contributions over 5 years, Ally Bank's total earnings would be the same as Capital One's total earnings.
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
Compare Ally Bank's vs Capital One's Savings Accounts
| Ally Bank | Capital One | ||
|---|---|---|---|
| Product | Savings Account | vs | 360 Performance Savings |
| APY | 3.40% (as of 10/14/2025) | 3.40% (as of 10/14/2025) | |
| Bundled Account | No | No | |
| FDIC-insured | Yes | Yes | |
| Online Only | Yes | No | |
| Compound Frequency | Daily | Monthly | |
| Minimum Deposit | $0 | $0 | |
| Minimum Balance for APY | $0 | $0 | |
| Maintenance Fee | $0 | $0 | |
| Direct Deposit Required | No | No | |
| App Store Rating | 4.7/5 | 4.9/5 | |
| Google Play Rating | 4.3/5 | 4.5/5 | |
| BBB Rating | A+ | A+ |
Comparative Historical APY Insights (Last 9 Months)
| Ally Bank | Capital One | ||
|---|---|---|---|
| Product | Savings Account | vs | 360 Performance Savings |
| Latest APY | 3.40 % | 3.40 % | |
| Trend | Sideways | Sideways | |
| Slope (bps/mo) | -3.8 | -3.6 | |
| Rate Changes / Mo | 0.46 | 0.46 | |
| Days Since Last Change | 19 | 14 | |
| High (-9 m) | 3.80 % | 3.80 % | |
| Low (-9 m) | 3.40 % | 3.40 % | |
| Draw-down from High | -10.5 % | -10.5 % | |
| Volatility (CV) | 0.029 | 0.027 |
APY Insights Glossary
- Latest APY
- Most recent advertised annual-percentage yield.
- Trend
- Direction over the last 9 months (regression slope).
- Slope (bps/mo)
- Average monthly change; 10 bps = 0.10 pp.
- Rate Changes / Mo
- Typical number of APY moves per month.
- Days Since Last Change
- Recency of the latest APY adjustment.
- High (-9 m)
- Highest APY in the last 260 days.
- Low (-9 m)
- Lowest APY in the last 260 days.
- Draw-down from High
- How far today sits below the 9-month peak.
- Volatility (CV)
- Coefficient of variation = stdev ÷ mean.
Why Track Savings-Account APYs?
- See how quickly a bank reacts to Fed moves or competition.
- Gauge “twitchiness” - frequent moves can annoy savers.
- Spot if you're buying near a peak (draw-down) or riding a rise.
- Slope (bps/mo) shows speed of change.
- Volatility (CV) scales jumps by average level.
More Comparisons
Compare Ally Bank's APY of 3.40% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Ally Bank vs American Express | 3.50% | $0 |
| Ally Bank vs Axos Bank | 4.51% | $0 |
| Ally Bank vs Bank of America | 0.01% | $100 |
| Ally Bank vs Barclays | 4.10% | $0 |
| Ally Bank vs BrioDirect | 4.20% | $5,000 |
| Ally Bank vs Chase Bank | 0.01% | $0 |
| Ally Bank vs Chime | 3.75% | $0 |
| Ally Bank vs CIT Bank | 3.85% | $100 |
| Ally Bank vs Discover Bank | 3.40% | $0 |
| Ally Bank vs Elevault | 4.34% | $0 |
| Ally Bank vs EverBank | 4.05% | $0 |
| Ally Bank vs Fitness Bank | 4.75% | $100 |
| Ally Bank vs FVCbank | 4.10% | $500 |
| Ally Bank vs GO2bank | 4.50% | $0 |
| Ally Bank vs Marcus by Goldman Sachs | 3.65% | $0 |
| Ally Bank vs Neighbors Bank | 4.50% | $0 |
| Ally Bank vs Newtek Bank | 4.35% | $0 |
| Ally Bank vs Peak Bank | 4.20% | $100 |
| Ally Bank vs Pibank | 4.60% | $0 |
| Ally Bank vs Presidential Bank | 4.50% | $5,000 |
| Ally Bank vs Santander Bank | 0.01% | $25 |
| Ally Bank vs SoFi Bank | 4.50% | $0 |
| Ally Bank vs Synchrony Bank | 3.80% | $0 |
| Ally Bank vs TIMBR | 4.40% | $1,000 |
| Ally Bank vs UFB Direct | 3.96% | $5000 |
| Ally Bank vs Varo Bank | 5.00% | $0 |
| Ally Bank vs Wells Fargo | 0.05% | $25 |
| Ally Bank vs Zynlo Bank | 4.20% | $10 |
Compare Capital One's APY of 3.40% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Capital One vs American Express | 3.50% | $0 |
| Capital One vs Axos Bank | 4.51% | $0 |
| Capital One vs Bank of America | 0.01% | $100 |
| Capital One vs Barclays | 4.10% | $0 |
| Capital One vs BrioDirect | 4.20% | $5,000 |
| Capital One vs Chase Bank | 0.01% | $0 |
| Capital One vs Chime | 3.75% | $0 |
| Capital One vs CIT Bank | 3.85% | $100 |
| Capital One vs Discover Bank | 3.40% | $0 |
| Capital One vs Elevault | 4.34% | $0 |
| Capital One vs EverBank | 4.05% | $0 |
| Capital One vs Fitness Bank | 4.75% | $100 |
| Capital One vs FVCbank | 4.10% | $500 |
| Capital One vs GO2bank | 4.50% | $0 |
| Capital One vs Marcus by Goldman Sachs | 3.65% | $0 |
| Capital One vs Neighbors Bank | 4.50% | $0 |
| Capital One vs Newtek Bank | 4.35% | $0 |
| Capital One vs Peak Bank | 4.20% | $100 |
| Capital One vs Pibank | 4.60% | $0 |
| Capital One vs Presidential Bank | 4.50% | $5,000 |
| Capital One vs Santander Bank | 0.01% | $25 |
| Capital One vs SoFi Bank | 4.50% | $0 |
| Capital One vs Synchrony Bank | 3.80% | $0 |
| Capital One vs TIMBR | 4.40% | $1,000 |
| Capital One vs UFB Direct | 3.96% | $5000 |
| Capital One vs Varo Bank | 5.00% | $0 |
| Capital One vs Wells Fargo | 0.05% | $25 |
| Capital One vs Zynlo Bank | 4.20% | $10 |