Given the state volume differences (for example for last quarter ending 9/30/15, CA had $323M of $2.235B of the total LC issuance, or ~14.46%), it would be difficult to find enough loans to cap all of the CA, TX, FL AND NY states at 5% given that these 4 states alone accounted for ~38.34% of the loan issuance last quarter. You may be able to redline 1 or 2 of these 4 states, but good luck finding enough loan volume from other states.
I'm not aware of any third-party providers that have enabled the capping of state allocation as a percentage of your portfolio. It is a fairly simple if you have basic programming skills to implement this.
Personally, I redline NY (my default rate from this state was quite a bit higher for some odd reason). My loan issuance by state is below:
State %ofIssued
TX 13.83%
CA 13.54%
PA 4.92%
VA 4.71%
NJ 4.63%
FL 3.62%
IL 3.26%
NC 3.26%
OH 3.26%
MD 3.19%
GA 3.11%
MA 2.90%
WA 2.61%
CO 2.46%
IN 2.39%
LA 2.39%
MO 2.32%
AZ 2.24%
MI 2.10%
OK 2.03%
AL 1.81%
SC 1.52%
TN 1.52%
OR 1.45%
MN 1.30%
KS 1.01%
NV 0.94%
NY 0.94%
KY 0.72%
UT 0.72%
AR 0.65%
WI 0.65%
HI 0.51%
NH 0.51%
NM 0.51%
MS 0.36%
WV 0.36%
RI 0.29%
MT 0.22%
ND 0.22%
WY 0.22%
CT 0.14%
DC 0.14%
DE 0.14%
NE 0.14%
AK 0.07%
SD 0.07%
VT 0.07%