I like to play to the final whistle or when the fat lady sings, so it's a bit early for me to do my final analysis yet

That said, it looks like it's going to be a poor year for me. Probably flat or even slightly down depending on what happens in next couple of weeks. Either way unless some big surprises it will have been a poor year. That's the way it goes sometimes though. Last year was an OK one, and it's the averages over long terms that count for me.

UK Smaller Companies, Europe, Russia have all showed nice gains. Neil Wood put in a solid return too as usual for UK income.

Poor have been Asia and Emerging markets ETFs. These I hold as "low cost" choices via Singapore. Fortunately not large exposures, as the larger exposures are in active funds that have done better. Or should I say small losses It really re-affirms my view that low cost is OK for convenience, but if you spend the time and research you can do much better, even if you pay a little more

Worst has been resource based funds. Fortunately they're again now small holdings (less than 2 or 3%) in specialist funds, as I'd already significant cut holdings.

Overall more winners than losers.

The thing that brings me down most though is Thailand I've a large weighting - usually 35% to 40% concentrated in Thai equities that I hold year after year. Since GFC in 2008, they'd made nice profits for 6 straight years running.
Unfortunately this is unlucky number 7. They're down ball park 10%-ish this year. Can't exactly grumble though after 6 years of decent profits, up around 60% over 5 years and 200%+ over 10. If someone's investing in equities they need to accept prices fall as well as rise, and Thailand can be unexpected and difficult to call, which is generally why I don't try to call it on long term investing.

On the other hand SET options trading, where I do make calls and take views, has been a very nice bright spot again. I put some safety trades in place yesterday so that come what may I'll have returned at least +40%. A nice return in a falling Thai market. If it holds around current levels that should be more like +60% profit. Could have been much brighter still except for the last 2 week's falls

I look at currencies in a lot of different ways.

But yes basically when it comes to Thai equities I've very little interest in how they've performed in GBP terms and absolutely no interest how they've performed in USD terms (except maybe as a tool sometimes to compare vs other investments in different currencies).

I do monitor net worth overall in different currencies though, and mentally across different levels of assets.

The whole point of THB equity assets is to hedge against my THB liabilities and meet THB expenditures. eg I've several million THB left to pay in school fees (liabilities) over the next 10 years or so, which increase by about 4% p.a., before payments made, and without counting other THB expenses. Over the last year they've decreased by about 5% in GBP terms so cost less in GBP terms. But it doesn't mean much to say I owe GBP X thousand less in GBP terms for Thai school fees I'd never pay if in the UK. Similarly I'd have a 9% FX gain if revaluing these into USD, but that's even more pointless for me to do so.

The only way I'm going to offset THB school fees over 10 - 15 years that grow at 4% p.a with some form of currency hedge is with a THB asset class that has potential to grow at at least the same rate. Hence the large exposure to Thai equities. 

By the same token if I consider the THB equity funds I hold, depending on when acquired (going back to 1990's) I've gains worth 10% - 25% on them in the strengthening of THB vs GBP to add on if I wanted to convert back to GBP. So the odd FX movement up and down each year again doesn't mean much to me.

I am interested in the long term appreciation (for me) of THB vs GBP as a trend but don't bother converting these long term gains on individual investments at different points in time back to GBP terms. The GBP or THB asset allocation at overall level though is a strategic overall decision.

Another element to consider in addition to assets and liabilities is funding. Generally they're also funded out of THB earnings  

Also I don't adjust for the 35% to 37% tax relief I've received on LTFs or RMFs, on indvidual investments, though I do some checks at overall level

On the other hand there'll also by FX impacts elsewhere, eg Standard Life UK Smaller Companies was up about about +24.7% to end of November. I don't bother adding on another 5% in THB terms at individual investment level, and just leave it in GBP terms. The intention is to keep that money in the UK.

I should add I do other stuff around in currencies for measurement, but not necessarily at individual investment level, more at net worth/ aggregate levels. 

So do you monitor your other investments in THB? Or do you consider them totally separately and monitor in GBP?

I guess as you keep most of your money offshore then it's simpler to just monitor in GBP and then convert to THB for total worth?

Do you think that'll ever change?

Settling here for longer term and the thought I might not go back; and then adding Thai dependents were the two main reasons I changed

In my pre-Thailand days I used to also convert things to IDR, that would always cheer me up. Billionaire+  I did think about whether it would be somewhere I could settle and used to visit quite a lot. But chose Thailand instead.

FTSE 30-Dec-1999 was 6930 now as of 13 Dec 2015 it's 5952 that's down 14%.

Worse still that's in GBP terms.

GBP has also depreciated by about 9% vs THB over that period...

so FTSE is down over 20% in THB terms