The value of my Roth IRA from a conversion that I made earlier in 2015 declined so I recharacterized part of it as a traditional IRA in September. Is there any limit on the number of partial recharacterizations I can make?

Lump-sum distribution

Payments within one tax year of the entire amount due to a participant in a qualified retirement plan. Qualifying lump sums may be directly rolled over tax free, or, in some cases, are eligible for current tax under a favorable averaging method.