UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 1,681
Default Premium Bonds

On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,


agreed

and how recently it was
purchased.


Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.


Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.


I suspect the logic is that it has the same chance of winning as any
other bond. However as the total number of bonds issued increases, the
chances of any bond winning gets smaller. e.g. if you bought 10K bonds
when there were 10M issued, you would be more likely to win than if you
bought 10K when there were 100M issued.


I think not...

(I presume they adjust the payout from time to time to accommodate that
and the fluctuating returns they get investing the money)

....because your presumption is not correct.

Newly purchased bonds do not enter the draw until they have been held
for a month. This allows the total amount of prizes when they enter the
draw to be recalculated /every/ month to take account of the newly
purchased bonds (and any bonds cashed in, and the then current interest
rate on the fund). So eg if an extra 100,000 people each bought £50,000
bonds in November then by the time of December draw their £5 billion
would add an extra £50 million in prizes available. So the odds of any
bonds winning - new or old - would accordingly be maintained[1]

This is not just any lottery. This is a government lottery set up when
the civil service[2] still knew how to define and execute a fair process

[1] maintained but not /exactly/ the same as befo calculating the
odds is well beyond my ability given, among other things, the effect of
the fixed number of £1 million prizes. But the way that is fixed means
a net growth in the total number of bonds actually /increases/ the
likelihood of anyone individual bond winning something. (I think. It's
a very long time since I heard all this from NS&I folk. And wines have
been taken.)

[2] to be fair, I am confident some still could - e.g. ONS. I'm less
sure about some other depts.


--
Robin
reply-to address is (intended to be) valid
  #2   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 25,191
Default Premium Bonds

On 05/06/2021 21:59, Robin wrote:
On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,

agreed

and how recently it was
purchased.

Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.

Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.


I suspect the logic is that it has the same chance of winning as any
other bond. However as the total number of bonds issued increases, the
chances of any bond winning gets smaller. e.g. if you bought 10K bonds
when there were 10M issued, you would be more likely to win than if
you bought 10K when there were 100M issued.


I think not...

(I presume they adjust the payout from time to time to accommodate
that and the fluctuating returns they get investing the money)

...because your presumption is not correct.


erm, I think you just confirmed my presumption *is* correct - they do
adjust the payout to account for the changing number of active bonds.


Newly purchased bonds do not enter the draw until they have been held
for a month.Â* This allows the total amount of prizes when they enter the
draw to be recalculated /every/ month to take account of the newly
purchased bonds (and any bonds cashed in, and the then current interest
rate on the fund). So eg if an extra 100,000 people each bought £50,000
bonds in November then by the time of December draw their £5 billion
would add an extra £50 million in prizes available.Â* So the odds of any
bonds winning - new or old - would accordingly be maintained[1]




--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/
  #3   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 1,681
Default Premium Bonds

On 06/06/2021 20:38, John Rumm wrote:
On 05/06/2021 21:59, Robin wrote:
On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,

agreed

and how recently it was
purchased.

Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.

Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.

I suspect the logic is that it has the same chance of winning as any
other bond. However as the total number of bonds issued increases,
the chances of any bond winning gets smaller. e.g. if you bought 10K
bonds when there were 10M issued, you would be more likely to win
than if you bought 10K when there were 100M issued.


I think not...

(I presume they adjust the payout from time to time to accommodate
that and the fluctuating returns they get investing the money)

...because your presumption is not correct.


erm, I think you just confirmed my presumption *is* correct - they do
adjust the payout to account for the changing number of active bonds.


Yes.

And no

I should have made clear I was contesting your "from time to time".
That seemed to me to imply possible delay between changes in the total
number of bonds and changes in the prize fund. Indeed, without such
delay I don't see how you can get the result you predicted ("if you
bought 10K bonds when there were 10M issued, you would be more likely to
win than if you bought 10K when there were 100M issued"). A result that
is prevented by the month by month adjustment.

I think.

Hic.

--
Robin
reply-to address is (intended to be) valid
  #4   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 25,191
Default Premium Bonds

On 06/06/2021 22:27, Robin wrote:
On 06/06/2021 20:38, John Rumm wrote:
On 05/06/2021 21:59, Robin wrote:
On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,

agreed

and how recently it was
purchased.

Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.

Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.

I suspect the logic is that it has the same chance of winning as any
other bond. However as the total number of bonds issued increases,
the chances of any bond winning gets smaller. e.g. if you bought 10K
bonds when there were 10M issued, you would be more likely to win
than if you bought 10K when there were 100M issued.

I think not...

(I presume they adjust the payout from time to time to accommodate
that and the fluctuating returns they get investing the money)

...because your presumption is not correct.


erm, I think you just confirmed my presumption *is* correct - they do
adjust the payout to account for the changing number of active bonds.


Yes.

And no

I should have made clear I was contesting your "from time to time".
ThatÂ* seemed to me to imply possible delay between changes in the total
number of bonds and changes in the prize fund.


Actually I was just highligting that I have not looked at the details in
a very long time (not held any bonds for 20 years) - so I did not know
what frequency they did the adjustments at.

Indeed, without such
delay I don't see how you can get the result you predicted ("if you
bought 10K bonds when there were 10M issued, you would be more likely to
win than if you bought 10K when there were 100M issued").Â* A result that
is prevented by the month by month adjustment.


Indeed - I was not suggesting that the claims that more recent ones are
more likely to win was actually correct - only suggesting a mechanism
that some might imaginine that would allow this to be true (hence the "I
suspect the logic is that"). Apologies if I did not express that very well.

I think.


The monthly adjustment sounds quite plausible... especially since its a
fully automated system.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/
  #5   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 1,681
Default Premium Bonds

On 06/06/2021 22:55, John Rumm wrote:
On 06/06/2021 22:27, Robin wrote:
On 06/06/2021 20:38, John Rumm wrote:
On 05/06/2021 21:59, Robin wrote:
On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,

agreed

and how recently it was
purchased.

Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.

Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.

I suspect the logic is that it has the same chance of winning as
any other bond. However as the total number of bonds issued
increases, the chances of any bond winning gets smaller. e.g. if
you bought 10K bonds when there were 10M issued, you would be more
likely to win than if you bought 10K when there were 100M issued.

I think not...

(I presume they adjust the payout from time to time to accommodate
that and the fluctuating returns they get investing the money)

...because your presumption is not correct.

erm, I think you just confirmed my presumption *is* correct - they do
adjust the payout to account for the changing number of active bonds.


Yes.

And no

I should have made clear I was contesting your "from time to time".
ThatÂ* seemed to me to imply possible delay between changes in the
total number of bonds and changes in the prize fund.


Actually I was just highligting that I have not looked at the details in
a very long time (not held any bonds for 20 years) - so I did not know
what frequency they did the adjustments at.

Indeed, without such delay I don't see how you can get the result you
predicted ("if you bought 10K bonds when there were 10M issued, you
would be more likely to win than if you bought 10K when there were
100M issued").Â* A result that is prevented by the month by month
adjustment.


Indeed - I was not suggesting that the claims that more recent ones are
more likely to win was actually correct - only suggesting a mechanism
that some might imaginine that would allow this to be true (hence the "I
suspect the logic is that"). Apologies if I did not express that very well.


Ah, I see. My mistake. I had thought that Jove had nodded. (As in you
thought that logic was, err, logical.) I should have known better. Sorry.



--
Robin
reply-to address is (intended to be) valid


  #6   Report Post  
Posted to uk.d-i-y
external usenet poster
 
Posts: 1,681
Default Premium Bonds

On 06/06/2021 22:55, John Rumm wrote:
On 06/06/2021 22:27, Robin wrote:
On 06/06/2021 20:38, John Rumm wrote:
On 05/06/2021 21:59, Robin wrote:
On 05/06/2021 21:14, John Rumm wrote:
On 05/06/2021 16:22, Andy Bennet wrote:
On 05/06/2021 15:56, Peter Johnson wrote:
On Sat, 5 Jun 2021 12:52:58 +0100, "Jim GM4DHJ ..."
wrote:

Well that is five £25 wins in five months since I started...is this
normal ?

Depends how big your holding is, I'd say,

agreed

and how recently it was
purchased.

Nope


Recent purchases win more often than older ones because
there are more of them, so a large holding purchased in the last 12
months will produce more winners than a similarly large holding
purchased, say, five or ten years ago.

Complete garbage. Each bond has exactly the same probability of
winning regardless of when it was purchased.

I suspect the logic is that it has the same chance of winning as
any other bond. However as the total number of bonds issued
increases, the chances of any bond winning gets smaller. e.g. if
you bought 10K bonds when there were 10M issued, you would be more
likely to win than if you bought 10K when there were 100M issued.

I think not...

(I presume they adjust the payout from time to time to accommodate
that and the fluctuating returns they get investing the money)

...because your presumption is not correct.

erm, I think you just confirmed my presumption *is* correct - they do
adjust the payout to account for the changing number of active bonds.


Yes.

And no

I should have made clear I was contesting your "from time to time".
ThatÂ* seemed to me to imply possible delay between changes in the
total number of bonds and changes in the prize fund.


Actually I was just highligting that I have not looked at the details in
a very long time (not held any bonds for 20 years) - so I did not know
what frequency they did the adjustments at.

Indeed, without such delay I don't see how you can get the result you
predicted ("if you bought 10K bonds when there were 10M issued, you
would be more likely to win than if you bought 10K when there were
100M issued").Â* A result that is prevented by the month by month
adjustment.


Indeed - I was not suggesting that the claims that more recent ones are
more likely to win was actually correct - only suggesting a mechanism
that some might imaginine that would allow this to be true (hence the "I
suspect the logic is that"). Apologies if I did not express that very well.


Ah, I see. My mistake. I had thought that Jove had nodded. (As in you
thought that logic was reality.) I should have known better. Sorry.



--
Robin
reply-to address is (intended to be) valid
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Premium bonds Jim GM4DHJ ... UK diy 20 May 20th 21 09:44 PM
premium bonds Jim GM4DHJ ... UK diy 0 May 18th 21 08:18 AM
OT my new premium bonds Jimmy Stewart ... UK diy 41 February 6th 21 02:43 PM
Brick quantities for various bonds Richard[_12_] UK diy 15 June 13th 11 12:20 PM
OT - "Some doubt triple-A rating for U.S. bonds" Cliff Metalworking 0 December 16th 04 03:47 PM


All times are GMT +1. The time now is 03:47 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"