Multiple buys, one honest number — the average entry your whole stack breaks even at.
The average entry is a harmonic mean, not arithmetic — equal dollar buys automatically purchase more coins at lower prices, which is the quiet advantage of DCA over lump-sum timing.
Lump-sum wins slightly more often in rising markets, but DCA removes the timing decision and matches how income arrives — for volatile assets the discipline is usually worth the small expected-value gap.
Only when the original thesis still holds and total size stays inside the risk plan. Averaging down without a limit is how small losses become account-enders.
Weekly vs monthly differences are minor; consistency through a bear market matters more than frequency.
Free, no signup, runs entirely in your browser. Educational tool — not financial advice. Practice the setup risk-free on the MarginPad paper-trading terminal before putting real money behind it.