lending on ethereum mainnet, block 26,026,599 (2026-09-21 14:52 utc)

asset    market       supply apy borrow apy    util   supplied  borrowed
USDC     compound v3       3.77%      4.63%  90.1%*      $378m     $341m
USDC     aave v3           3.76%      4.48%  93.6%*    $2.38bn   $2.22bn
USDC     spark             3.37%      4.21%  89.2%        $36m      $32m

USDT     spark             4.21%      4.92%  95.4%*      $315m     $301m
USDT     aave v3           3.98%      4.76%  93.2%*    $2.91bn   $2.71bn
USDT     compound v3       2.88%      3.76%  79.0%       $178m     $141m

DAI      aave v3           3.23%      4.91%  88.3%       $130m     $115m
DAI      spark             2.74%      4.33%  71.0%       $294m     $209m

USDS     compound v3       3.16%      3.98%  86.5%      $1.87m    $1.62m
USDS     spark             2.59%      4.21%  69.0%     $1.44bn     $993m
USDS     aave v3           0.16%      5.69%   3.7%      $9.01m     $337k

USDe     aave v3           0.62%      6.54%  13.1%       $609m      $80m

PYUSD    aave v3           3.81%      4.94%  86.0%      $7.72m    $6.64m
PYUSD    spark             0.86%      4.12%  23.7%       $186m      $44m

WETH     aave v3           1.45%      2.06%  83.0%     $5.82bn   $4.83bn
WETH     spark             1.39%      1.87%  78.1%     $1.64bn   $1.28bn
WETH     compound v3       1.13%      1.83%  56.3%       $139m      $78m

savings rates, set by governance, nothing lent out:
  sUSDS  sky savings rate    3.60% on 4.38bn USDS
  sDAI   dai savings rate    1.25% on 164.44m DAI

apy: the rate compounded every second, the way aave's interface shows it; compound's shows the apr.
usd at each market's oracle price (aave's for compound, whose weth market prices in eth).
* utilization at or above 90%: nearly all of it is lent out, a large withdrawal may have to wait for repayments.