The actual dollar amount paid out per share for this specific distribution event, as officially announced by the issuer.

These are different metrics, not two names for the same thing. Distribution Rate annualizes the most recent per-share payment against the current share price — it moves with every distribution and can include return of capital. The 30-Day SEC Yield is a standardized, SEC-mandated formula based on the fund's actual investment income over the trailing 30 days, intended to be more comparable across funds. A high Distribution Rate does not necessarily mean a high SEC Yield.

ROC is a tax/accounting classification estimate for the portion of a distribution treated as a return of your own invested capital rather than investment income. It is not automatically "good" or "bad," and should not be interpreted as a profit-or-loss signal on its own — actual tax treatment depends on your specific holding and is finalized by the fund's official tax reporting (e.g. Form 1099-DIV), not by this estimate.