Hi, newbie to derivatives here!
I'm looking to backtest a trading strategy involving ATM options, so I'm on the hunt for daily closing prices for both puts and calls. For no better reason than comfort's sake, I'd ideally like to use ASX data as opposed to US.
Anyway, the closest I've come is using the past data search in CommSec and putting in tickers for current options (if I'm looking for $5 call data on TLS, I'd just copy paste the relevant ticker from the current month). However, the numbers I'm getting back don't line up. Presumably because the tickers are recycled and one relevant to $5 calls this month may have been $3 calls a few years ago.
Is there some way I can dissect this data, or find clearer, free information elsewhere? I'll pay for it if I have to but would rather get it for nothing
Cheers!
I'm looking to backtest a trading strategy involving ATM options, so I'm on the hunt for daily closing prices for both puts and calls. For no better reason than comfort's sake, I'd ideally like to use ASX data as opposed to US.
Anyway, the closest I've come is using the past data search in CommSec and putting in tickers for current options (if I'm looking for $5 call data on TLS, I'd just copy paste the relevant ticker from the current month). However, the numbers I'm getting back don't line up. Presumably because the tickers are recycled and one relevant to $5 calls this month may have been $3 calls a few years ago.
Is there some way I can dissect this data, or find clearer, free information elsewhere? I'll pay for it if I have to but would rather get it for nothing
Cheers!