Post niche articles all at once or over time?

Which is better:

1. Posting articles on your niche site all at once on the same day.
2. Posting articles on your niche site over time (one per day).

I usually have just posted multiple articles in one day, had them indexed all at once, and went from there. I'm rethinking my strategy to make it seem more natural and wanted to see if anyone has any suggestions on this. Will spreading out the posting once a day be more effective? Does this even matter?

Depends on how many articles you are talking about.

Posting 20 articles in one day for a small site would look unnatural.
With a large site with many authors it wouldn't be a problem.

Try posting 2-3 p/d max but keep it consistent.