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DISCLOSURES REGARDING FAIR VALUES OF FINANCIAL INSTRUMENTS
6 Months Ended
Jun. 30, 2016
DISCLOSURES REGARDING FAIR VALUES OF FINANCIAL INSTRUMENTS [Abstract]  
DISCLOSURES REGARDING FAIR VALUES OF FINANCIAL INSTRUMENTS
NOTE 9 ¾ DISCLOSURES REGARDING FAIR VALUES OF FINANCIAL INSTRUMENTS
 
This note provides fair value-related disclosures as of the indicated balance sheet dates for Capstead’s financial assets and liabilities, most of which are influenced by changes in, and market expectations for changes in, interest rates and market liquidity conditions, as well as other factors beyond the control of management.  With the exception of the fair value of lending counterparty investments, all fair values were determined using Level 2 Inputs in accordance with ASU 2010-06, Fair Value Measurements and Disclosures (Topic 820).  Lending counterparty investments are nonmarketable securities classified as assets for which Level 3 Inputs are used to determine fair value.  These assets consist primarily of FHLB stock and are considered strategic investments that are carried at cost and periodically valued and evaluated for impairment.  No impairment charges have been recorded relative to these investments and the Company’s cost basis is deemed to approximate fair value.

Residential mortgage investments, nearly all of which are mortgage securities classified as available-for-sale, are measured at fair value on a recurring basis.  In determining fair value estimates the Company considers recent trading activity for similar investments and pricing levels indicated by lenders in connection with designating collateral for secured borrowings, provided such pricing levels are considered indicative of actual market clearing transactions.  In determining fair value estimates for Secured borrowings with initial terms of greater than 120 days, the Company considers pricing levels indicated by lenders for entering into new transactions using similar pledged collateral with terms equal to the remaining terms of the these borrowings.  The Company considers current pricing for financial instruments with similar characteristics in determining fair value estimates for Unsecured borrowings prior to these borrowings’ initial redemption dates and subsequently bases fair value on discounted cash flows using Company estimates for market yields.  Excluded from these disclosures are financial instruments for which cost basis is deemed to approximate fair value due primarily to the short duration of these instruments, which are valued using primarily Level 1 measurements, including Cash and cash equivalents, Cash collateral receivable from, or payable to, interest rate swap counterparties, receivables, payables and secured borrowings with initial terms of 120 days or less.  See NOTE 6 for information relative to the valuation of interest rate swap agreements.  Fair value-related disclosures for financial instruments other than debt securities were as follows as of the indicated dates (in thousands):
 
  
June 30, 2016
  
December 31, 2015
 
  
Carrying
Amount
  
Fair
Value
  
Carrying
Amount
  
Fair
Value
 
Financial assets:
            
Residential mortgage loans
 
$
2,948
  
$
3,000
  
$
3,817
  
$
3,900
 
Lending counterparty investments
  
35,002
   
35,002
   
65,002
   
65,002
 
Portfolio-related interest rate swap agreements
  
24
   
24
   
7,720
   
7,720
 
Financial liabilities:
                
Secured borrowings with initial terms of greater than 120 days
  
2,143,179
   
2,143,800
   
3,246,177
   
3,245,000
 
Unsecured borrowings
  
98,040
   
69,800
   
97,986
   
77,200
 
Interest rate swap agreements:                
Portfolio-related
  
20,963
   
20,963
   
1,051
   
1,051
 
Unsecured borrowings-related
  
41,040
   
41,040
   
25,010
   
25,010
 
 
Fair value-related disclosures for debt securities were as follows as of the indicated dates (in thousands):
 
 
Amortized
Cost Basis
  
Gross Unrealized
  
Fair Value
 
    
Gains
  
Losses
   
June 30, 2016
            
Agency Securities classified as available-for-sale:                
Fannie Mae/Freddie Mac
 
$
10,387,983
  
$
169,161
  
$
1,602
  
$
10,555,542
 
Ginnie Mae
  
3,324,482
   
20,586
   
4,216
   
3,340,852
 
Residential mortgage securities classified as held-to-maturity
  
2,201
   
27
   
   
2,228
 
December 31, 2015
                
Agency Securities classified as available-for-sale:                
Fannie Mae/Freddie Mac
  
10,331,965
   
166,794
   
10,954
   
10,487,805
 
Ginnie Mae
  
3,661,766
   
11,705
   
13,016
   
3,660,455
 
Residential mortgage securities classified as held-to-maturity
  
2,660
   
44
   
   
2,704
 
 
  
June 30, 2016
  
December 31, 2015
 
  
Fair
Value
  
Unrealized
Loss
  
Fair
Value
  
Unrealized
Loss
 
Securities in an unrealized loss position:
            
One year or greater
 
$
632,671
  
$
3,129
  
$
597,652
  
$
4,259
 
Less than one year
  
922,011
   
2,689
   
4,468,844
   
19,711
 
  
$
1,554,682
  
$
5,818
  
$
5,066,496
  
$
23,970
 

Capstead’s investment strategy involves managing a leveraged portfolio of relatively short-duration ARM Agency Securities and management expects these securities will be held until payoff absent a major shift in strategy or a severe contraction in the Company’s ability to obtain financing to support its portfolio.  Declines in fair value caused by increases in interest rates are typically modest for investments in short-duration ARM Agency Securities compared to investments in longer-duration ARM or fixed-rate assets.  These declines are generally recoverable in a relatively short period of time as coupon interest rates on the underlying mortgage loans reset to rates more reflective of the then-current interest rate environment.

From a credit risk perspective, federal government support for Fannie Mae and Freddie Mac helps ensure that fluctuations in value due to credit risk associated with these securities will be limited.  Given that (a) any existing unrealized losses on mortgage securities held by the Company are not attributable to credit risk and declines in fair value of ARM securities due to changes in interest rates are generally recoverable in a relatively short period of time, (b) the Company typically holds its investments to maturity, and (c) it is more likely than not that the Company will not be required to sell any of its investments given the resiliency of the financing market for Agency Securities, none of these investments were considered other-than-temporarily impaired at June 30, 2016.