Not so much. I remember a discussion about this and that was supposed to be one of the weird things: it was hard to measure the receiving loss. It should because some of the power from the antenna on receive is reflecting back from the receiver -- but I really can't say how much. Almost all discussions I've seen focus on transmit.
If you read that article I linked, you see that in some cases a transmission line might IMPROVE the match by being deliberately cut off-length. Often, when we mount antenna's close to reflective surfaces (like cabs in our truck) we make the antenna "reactive". It's actually possible to cut the feedline to make it reactive in the opposite direction (like, if the antenna has capacitive reactance, make the feedline inductively reactive) to acheive a better match.