American Express vs Marcus By Goldman Sachs
High-Yield Savings Accounts Comparison

Last Updated: August 29, 2025

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Summary of American Express vs. Marcus by Goldman Sachs

As of August 29, 2025 American Express offers an APY of 3.50% for its High Yield Savings Account account, compared to Marcus by Goldman Sachs's 3.65% APY for its Marcus Online Savings Account account.

Marcus by Goldman Sachs yields $15 more than American Express on a $10,000 balance after one year. American Express pays $350, while Marcus by Goldman Sachs pays $365 - an APY advantage for Marcus by Goldman Sachs.

American Express

Strengths

  • American Express offers a competitive APY of 3.50%.
  • No maintenance fees or minimum balance requirements.
  • High App Store rating of 4.9.

Potential Drawbacks

  • American Express has a BBB rating of F and is not accredited.
  • Google Play rating is lower at 3.8.
  • No physical branches for in-person service.

Marcus by Goldman Sachs

Strengths

  • Marcus by Goldman Sachs has a higher APY of 3.65%.
  • BBB rating of A+ indicates strong trustworthiness.
  • Google Play rating is better at 4.1.

Potential Drawbacks

  • Marcus by Goldman Sachs has no physical branches.
  • App Store rating is slightly lower at 4.8.
  • No direct deposit requirement may limit some users.
Summary: Marcus by Goldman Sachs offers a higher APY of 3.65% compared to American Express's 3.50%. Additionally, Marcus boasts a superior BBB rating of A+ versus American Express's F. While both banks lack physical branches, American Express has a higher App Store rating, though Marcus leads in Google Play ratings. Both accounts have no maintenance fees or minimum balance requirements.

Compare American Express' vs Marcus by Goldman Sachs' Savings Accounts

American ExpressMarcus by Goldman Sachs
ProductHigh Yield Savings AccountvsMarcus Online Savings Account
APY
3.50% (as of 8/29/2025)3.65% (as of 8/29/2025)
Bundled Account
NoNo
FDIC-insured
YesYes
Online OnlyYesYes
Compound Frequency
DailyDaily
Minimum Deposit$0$0
Minimum Balance for APY$0$0
Maintenance Fee$0$0
Direct Deposit Required
NoNo
App Store Rating4.9/54.8/5
Google Play Rating3.8/54.1/5
BBB RatingFA+

Comparative Historical APY Insights (Last 7 Months)

American ExpressMarcus by Goldman Sachs
ProductHigh Yield Savings AccountvsMarcus Online Savings Account
Latest APY3.50 %3.65 %
TrendSidewaysSideways
Slope (bps/mo)-4.2-4.5
Rate Changes / Mo0.420.28
Days Since Last Change3995
High (-7 m)3.80 %3.90 %
Low (-7 m)3.50 %3.65 %
Draw-down from High-7.9 %-6.4 %
Volatility (CV)0.0250.027
APY Insights Glossary
Latest APY
Most recent advertised annual-percentage yield.
Trend
Direction over the last 7 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 (-7 m)
Highest APY in the last 215 days.
Low (-7 m)
Lowest APY in the last 215 days.
Draw-down from High
How far today sits below the 7-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.

Calculate Savings Growth for American Express vs Marcus by Goldman Sachs

All calculations are based on APY.

American Express

APY: 3.50%

Total savings breakdown:

  • Interest earned: $2,114.1 (10.51%)
  • Total contributions: $13,000 (64.63%)
  • Initial deposit: $5,000 (24.86%)

Your total balance

$20,114.10

Effective APY: 3.50% (based on your deposit and contributions)

Total balance: $20,114.1

Earnings: $2,114.1

Bank Overview

Marcus by Goldman Sachs

APY: 3.65%

Total savings breakdown:

  • Interest earned: $2,209.7 (10.93%)
  • Total contributions: $13,000 (64.33%)
  • Initial deposit: $5,000 (24.74%)

Your total balance

$20,209.70

Effective APY: 3.65% (based on your deposit and contributions)

Total balance: $20,209.7

Earnings: $2,209.7

Bank Overview

With a $5,000 initial deposit and $13,000 in total contributions over 5 years, American Express's total earnings would be $95.6 lower than Marcus by Goldman Sachs's total earnings.

The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.

More Comparisons

Compare American Express' APY of 3.50% with other banks
Compare Marcus by Goldman Sachs' APY of 3.65% with other banks