More frequent SIPs slightly smooth entry prices. For most long-term investors, the difference is modest compared with contribution rate, fees, and staying invested.
- Match frequency to cash-flow rhythm (biweekly paychecks can map to biweekly buys).
- Avoid fees that punish small frequent trades.
- Prefer the schedule you will not micromanage.
Conclusion
Pick a cadence, automate it, and spend attention on contribution growth—not on weekly versus monthly optimization theater.