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

Last Updated: June 20, 2025

Summary of American Express vs. Marcus by Goldman Sachs

As of June 20, 2025 American Express offers an APY of 3.60% 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 $5 more than American Express on a $10,000 balance after one year. American Express pays $360, 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 3.60%.
  • No maintenance fees or minimum balance requirements.
  • High App Store rating of 4.9.

Potential Drawbacks

  • American Express has an F BBB rating and is not accredited.
  • Google Play rating is only 3.8.
  • No branches available.

Marcus by Goldman Sachs

Strengths

  • Marcus by Goldman Sachs has a solid APY of 3.65%.
  • A+ BBB rating indicates strong trustworthiness.
  • Google Play rating is higher at 4.2.

Potential Drawbacks

  • APY decreased from 3.75% in the last 30 days.
  • Marcus also has no branches.
  • App Store rating is slightly lower at 4.8.
Summary: American Express offers a slightly lower APY of 3.60% compared to Marcus by Goldman Sachs' 3.65%. However, Marcus has a superior A+ BBB rating and a better Google Play rating. Both banks have no branches and no maintenance fees, but American Express has a higher App Store rating. Marcus's APY has decreased recently, while American Express's has remained stable.

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

American ExpressMarcus by Goldman Sachs
ProductHigh Yield Savings AccountvsMarcus Online Savings Account
APY
3.60% (as of 6/20/2025)3.65% (as of 6/20/2025)
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
Visit BankHigh Yield Savings AccountMarcus Online Savings Account
App Store Rating4.9/54.8/5
Google Play Rating3.8/54.2/5
BBB RatingFA+

Comparative Historical APY Insights (Last 5 Months)

American ExpressMarcus by Goldman Sachs
ProductHigh Yield Savings AccountvsMarcus Online Savings Account
Latest APY3.60 %3.65 %
TrendSidewaysFalling
Slope (bps/mo)-4.3-6.3
Rate Changes / Mo0.420.42
Days Since Last Change4424
High (-5 m)3.80 %3.90 %
Low (-5 m)3.60 %3.65 %
Draw-down from High-5.3 %-6.4 %
Volatility (CV)0.0180.025
APY Insights Glossary
Latest APY
Most recent advertised annual-percentage yield.
Trend
Direction over the last 5 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 (-5 m)
Highest APY in the last 144 days.
Low (-5 m)
Lowest APY in the last 144 days.
Draw-down from High
How far today sits below the 5-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: 3.60%

Total savings breakdown:

  • Interest earned: $36 (3.47%)
  • Total contributions: $0 (0.00%)
  • Initial deposit: $1,000 (96.53%)

Your total balance

$1,036.00

Effective APY: 3.60% (based on your deposit and contributions)

Total balance: $1,036

Earnings: $36

Bank Details

Marcus by Goldman Sachs

APY: 3.65%

Total savings breakdown:

  • Interest earned: $36.5 (3.52%)
  • Total contributions: $0 (0.00%)
  • Initial deposit: $1,000 (96.48%)

Your total balance

$1,036.50

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

Total balance: $1,036.5

Earnings: $36.5

Bank Details

After 1 year American Express would earn you $0.5 less than Marcus by Goldman Sachs.

More Comparisons

Compare American Express' APY of 3.60% with other banks
Compare Marcus by Goldman Sachs' APY of 3.65% with other banks