"Ex-ante" essentially involves any type of prediction ahead of an event, or before market participants become aware of the pertinent facts. Buying a lottery ticket loses you money ex ante (in expectation), but if you win, it was the right decision ex post. Ante-post definition: In gambling , ante-post bets are placed before the day of a particular race or... | Meaning, pronunciation, translations and examples Ante-post betting, unlike starting price betting, carries the additional risk that the original bet will be forfeited, rather than returned, if the wagered horse fails to run. Let’s start! Source: Guide to Latin in International Law Author(s): Aaron X. Fellmeth, Maurice Horwitz “Before this.”Occurring before the event in question. They mean, literally, before the middle of the day (morning) and after the middle of the day (afternoon and evening). Ex post definition, based on analysis of past performance (opposed to ex ante). Earnings estimates, for example, involve ex-ante … adj. This is in contrast to ex-post analysis , which is based on the correlation of actual performance to factor returns. ex ante definition: 1. calculated or existing before a particular event: 2. calculated or existing before a particular…. Ex Post means after the event, and means something that is settled after the event actually happens. The words are ante-meridiem (am) and post-meridiem (pm). Learn more. Ex-ante performance attribution analysis, also known as risk-based performance attribution analysis, uses a portfolio’s factor exposures to determine expected returns. Synonyms (prior to in time): pre-(in front of in space): fore-Antonyms (prior to in time): post-(in front of in space): post-Derived terms Ante-mortem injuries are injuries that happen to the bone while a being is still alive. Ex Ante means before the event, and is basically a prediction of something. or adv. So, I’m going to help you out with your forensic crime solving vocab by shedding some knowledge on the terms: ‘post-, peri-, and ante– mortem,’ and why these distinctions are important. [< Latin, prefixal form of preposition and adv. ante; akin to Greek antí, Old English and-against, toward, opposite. ante-(non-productive) Prior to in time. ân´tē hak. antechamber anterior; Usage notes . See answer, and, anti-] Compare with Ante factum. In the financial world it’s often a prediction of a return on an investment. Ante hoc an´tā hōk . antebellum (non-productive) In front of in space. ‘the ante-post favourite’ ‘Then came the victory with Celestial Gold, who ironically was seen as a reserve for Johnson and Pipe's original first choice, Our Vic, the ante-post favourite for the race until he had to be withdrawn early last week with a muscle injury.’ Not to be confused with anti-.  The ante in ante-post is derived from the Latin ante (meaning "before"), but the post is not the Latin post (meaning "after"). See more. The opposite of ex-ante is ex-post (actual) (or ex post). Ex-ante is used most commonly in the commercial world, where results of a particular action, or series of actions, are forecast in advance (or intended).