# Ask & Bid yield calculation problem

1. Does anyone know how the ask and bid yields are calculated on this corporate bond?  I tried to use BEY calculation but I keep arriving at different answers.

2. Does anyone know what the \$500K means?

``````ASK 89.550(9.999%) x \$500K
BID 85.000(11.562%) x \$500K

Maturity date: 02’May’2025
Coupon: 6.75%
Par Value: 100
Call date: unknown
CUSIP: 316162227

Days to maturity: 1457 days
``````
• Here's an approximate calculation for the Ask: 100 - 89.55 = 10.45; 10.45 / 3.9918 = 2.62; 6.75 + 2.62 = 9.37; 9.37 / 89.55 = 10.46% . kbhscape.com/bond.htm . May 9, 2021 at 0:17
• @SSpring thanks for the try :) May 9, 2021 at 7:06
• The top "\$500K" is the ask size, and the bottom "\$500K" is the bid size.
– Flux
May 9, 2021 at 11:03
• Well, here's what happened. Multiple posters were showing up on this forum with incorrect bond pricings. The situation seemed like a scam occurring somewhere. Posters answering the questions seemed to be supporting the scams. Then finally the source of the problem was found to be an incorrect example in a Wikipedia article. Then next thing that happened is that a poster on the Math forum asked for an approximate yield-to-maturity calculation. And then an approximate, or an alternative, yield-to-maturity calculation was found with KBH Applications. May 9, 2021 at 17:58
• @Flux thanks for the explanation, I also found out, that in the bonds prospectus that it has 2 ISINs which I never knew until now that a security can have 2 ISINs ibb.co/yhkWgmL May 10, 2021 at 16:37