A stream cipher usually generates a stream of pseudo-random bits which get XORed with the plaintext to form the ciphertext. The stream is generated using a given IV / nonce and a secret key. CTR-mode for block ciphers is usually described as turning a block cipher into a stream cipher.
It is now widely known that the CTR-mode of operation provides IND-CPA security. Katz proves this in his book.
Does this result imply that all stream ciphers are IND-CPA?